Solve the quadratic equation of x2 + 4x - 7 = 0 by using completing the square. Give your answer correct to three decimal places.

Q: Question 9 (b) Show that the equation (a) 1.5x – 7x+8.5= 0 has no real roots. (b) 9x +30x+ 25 = 0…

A: Answer and explanation is given below...

Q: Solve the given quadratic equation 2x +x +1 = 0 By quadratic formula

A: Solution : The objective is to solve the given quadratic equation

Q: Read the real-world situation and substitute in values for the projectile motion formula. Then solve…

A: value of g in ft/s^2 is 32.17  u is 24 ft/s

Q: QUESTION 7 Use the Quadratic formula to find TWO solutions to 3x+3x+10=0. Select them from the…

A: The quadratic equation is given by 3x2+3x+10 = 0 To evaluate : The solution of the equation.

Q: If 3  4i is a solution of a quadratic equation with realcoefficients, then is also a solution of…

A: To solve the given problem.

Q: Question #7 Part B Lin decides to solve the equation using the quadratic formula. Here is her work:…

A: Solve

Q: 1. Find the quadratic equation whose roots are a + and B + where a and B are roots of the quadratic…

A: Consider the given quadratic equation having roots α and β is  2x2+7x-3=0 Here, the objective is to…

Q: QUESTION 3 Use the square root property to solve the equation. (x+2)2=9 Show your work on a separate…

A: As per the guidelines, we are supposed to answer only one question at once. Kindly repost the…

Q: Question 3 Let 1, x2 and x3 be the solutions of the equation 2a - a2 + 2x – 5 = 0 Without solving…

A: We have to find the value

Q: Solve æ + 2x – 16 = 0 using the Quadratic Formula. Round your answer to 3 decimal places. Preview

A: Given the equation

Q: 5. Solve the following equation for x. (4x+ 18) = 3x +4

A: Question Number 5Given:12(4x+18) = 3x+4  Find x = ?

Q: The roots of this equation is?

A: The roots of some equation f(x)=0 are the values of x for which the function value is 0. This also…

Q: 19. Find the roots of the equation: 3x² = - 27

A: Question no 20 is not completly shown.(data missing) So i just solve question no. 19. If u need…

Q: Question # 2: (a) Without solving the quadratic equation 3x² – 2x –1= 0, find whether x = 1 is a…

A:

Q: QUESTION 12 Solve the equations for x. 6-2x+13 = 71.12 Round your answer to 2 decimal places.

A: Solution:- The given equation is  6-2x+13=71.12

Q: Question 3 Solve by completing the square to obtain exact solutions. x<+ 8x = 3 -4 19 -4 = 219 4 +…

A: Option 1 is correct.

Q: Question 6 Solve the equation 9· 3* = 72x exactly.

A: the given equation is 9×3x=72x taking log both sides log9×3x=log72xlog 9 +xlog 3=2xlog72log 3+xlog…

Q: Question 7 )Solve the following equations: a. 2*+3 = = 52x-3 b. In(x- 4) + In(x + 2) = In(7)

A:

Q: Problem 19. Solve the equation r-10x + 16 0 by completing the square. The solutions are 1= and 2 =…

A: Given : x2-10x+16 = 0

Q: 1. x = 7x

A: We can solve the given quadratic equation by factorisation method.

Q: Question 7 *-e' Solve the equation = 5

A: The given equation is  ex-ee-x2=5ex-ee-x=10ex-eex=10e2x-eex=10e2x-e=10exex2-10ex-e=0 substitute ex=u…

Q: Question 5 Find the exact solutions to the following quadratic equation by comple x² + 5x – 1 = 0…

A: We have to find

Q: Question 7 of 8 Solve x=8, where x is a real number. Simplify your answer as much as possible. %3D…

A: Given: (7) x2 = 8 (8) 3x2 + 5x = 3

Q: Question 5: The roots of the equation 1 4 20 1 -2 = 0 = 0 are 5x² %D 1 2x

A:

Q: Solve each equation by factoring or by using the quadratic formula. If the solutions involve square…

A: To solve the equation.

Q: QUESTION 3 Use the Quadratic formula to find TWO solutions to 2x2+4x – 11=0. Select them from the…

A:

Q: Question Two Solve For x in the following i. 2x+3 = 21-x + 15

A:

Q: The sun of the roots of 2x +10x-4=0 is

A: x3+a x2+bx+ c = 0 Then sum or roots of this equation is = -a Compare equation 2x3+10x-4 = 0  Then…

Q: Question 6 - Solve the equation. * 1 -x+10%3D1

A: 13x+10=1

Q: :) Find the nature of the QF 2z*+zy% az²+ 2xy 2x°+3y27²+2xy CA ng: Positive Definite)

A:

Q: Questions 1-2. Find the solution(s) of each quadratic equat 2. 1. f(x) = x2 - 4x -5 Solution(s):…

A: As you have posted multiple questions in a single pic, as per our guidelines we will answer the…

Q: The equation of whose roots are the reciprocal of the roots of 2x² - 3x-5 = 0 is?

A: We know that if α, β are the roots of the equation ax2+bx+c = 0, then the equation with roots 1α, 1β…

Q: SOLVE QUESTION 11 USING THE QUADRATIC FORMULA. ROUND ANSWERS TO 3 SIGNIFICANT DIGITS IF NECESSARY.…

A:

Q: Question #4) The main span of a suspension bridge is the roadway between the bridges towers. The…

A: First step should be to form the linear equations with the help of given data.

Q: Question 1 by using the quadratic formula. 6. 3 2 Solve 3 - 4 (Use a comma to separate multiple…

A:

Q: Solve by using the quadratic formula: x +10x+9 =0 A. 5+4i and 5– 4i B. -5 + 4i and –5– 4i C. 4+5i…

A: As we know that   If ax2+bx+c=0  then  x1,2=-b±b2-4ac2a.   Given;   x2+10x+9=0

Q: Question 9 (a) Without solving the equations determine the number of roots of each of the following…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: (4 – 3i)?

A: To find 4-3i2

Q: Question 8 of 8 Use the quadratic formula to solve for x. 3x+5x 3 Round your answer to the nearest…

A: Please refer the attached image for complete solution.

Q: Solve the given radical equation. 4+v5x – 16 = x+2

A:

Q: Solve the equation by extracting the square roots. List both the exact solution and its…

A: Since (x-9)2=36=62 ,Now taking square root of both sides we get,  x-9=6    and x-9=-6  x=15  and…

Q: Question 15 > Solve the equation below by any method. Give an exact answer, using radicals if neede…

A:

Q: Question 3 Solve -q + 47 1 by using the quadratic form 3 (Use a comma to separate multiple values.)

A: Quadratic formula: The roots of the equation ax2+bx+c=0 are x=-b±b2-4ac2a

Q: Solve the quadratic equation 2x2 - 2x - 3 = 0 by using formula. Give your answer correct to four…

A: Here I am attaching image so that you understand each and every step.