Evaluate a + 4 x 7 - 2(b - 1), if a = 7, b = 4

Q: is x^2=4 and x+2=4 the same?

A: Consider the given equations as follows.

Q: what is x-3 /4=5/14-x+5/7

A: The given expression is,

Q: (r-4)(x+6)

A:

Q: Can the expression (-x+7) (xー7)(x+7) 2. be simplified further?

A: -x+7(x-7)(x+7)

Q: Evaluate r2-7   when r= -7

A:

Q: -8a b3 Ba³b³ Simplify: -2ab6

A: Using factored form

Q: 9. -2r - 7 >1 or x-2 2-1

A: we nee to solve the inequality -2x-7>1    or    x-2≥-1

Q: Evaluate 5|x3 - 2| + 7 when x = -2.

A:

Q: Why is (-3x2) (2x-5) not simplified? What must be done to simplify the expression?

A: Given: -3x22x-5 we know that for finding this product we use given below property axmbxn=abxm+n

Q: When finding (x + 5)2, why can't I just write x2 + 52, or x2 + 25?

A: Since the expanded form of the expression a+b2 is : a+b2=a2+b2+2ab In a similar way, the expansion…

Q: A + ՏԵ + - 2 1}}=?

A: Solution :-

Q: Find A. -1 1 (4A)-1 = -4 2 A =

A: Solve the following

Q: find the value of 7v-6 given that -13v-5=8

A: Given: -13v-5=8

Q: If x2-y3 2k and x2 + y3 2, what expression is equivalent to 2k+1 ?

A:

Q: What is the Value of the expression 3 (2x - 4) when x = -3?​

A: The value of an expression at the values of the variables in the expression can be obtained by…

Q: Show that (A + B)² is different from A? + 2AB+ B², when 1 A = 2 1 and B 3

A:

Q: 7) 16 2

A: According to Secant-Tangent theorem, Consider tangent point on circle as A and point meeting secant…

Q: Find A+ B 3. A = B = -6 4 91 -5 6. -7 -8

A:

Q: What is the answer for x-8=10 ?

A:

Q: 9x = 2, what does 9-2x equal?

A: Here is the solution

Q: The expression vVa(5x – 5/7) equals Aæ3/2 + Bx - where A equals: and B equals:

A:

Q: Evaluate -x+y2÷9 when x = 3 and y = -6.

A:

Q: For Exercise, simplify completely. ( –2ry -4 4x y7

A:

Q: why is this true 7a -2a +4a is equivalent to 11a – 2a

A: From the given problem:   7a-2a+4a   From the order of the mathematical operations:…

Q: Which one is the answer if x3 + 5x - 20 divided by x - 3. 1. x2 + 3x + 14 + 22/x - 3

A:

Q: Q2: Eralate Op= vtan-8-1

A:

Q: Find the value of mLACD. A D (3x - 15)° (45- x)°

A: The given figure ABCD has measure ∠B=∠D=90° and the sides AB and AD are similar.

Q: how do i do 1/3  X 3

A: A fraction is a number in the form xy (where x and y are both integers and y≠0). In the above number…

Q: Evaluate x2 - 6x + 3, for x = 7

A: We have to evaluate x2-6x+3 for x=7. Let Px=x2-6x+3 Now, at x=7 P7=72-6·7+3=49-42+3=52-42=10

Q: Find BA. A = BA= -1 - 1 -6-2 B = -2 - 3 -4 -1

A: Given:     A = -1-1   -6-2    B = -2-3  -4-1

Q: If 8x=9, what does 8-2x equal?

A:

Q: What (x-3)^2?

A:

Q: The value of 5X-7 < 8 < 3X-13 is:

A: Given Information:  5x -7 &lt; 8 &gt; 3x -13

Q: Evaluate x2 - 3(x - y), for x = 8 and y = 2

A: To evaluate: x2-3x-y for x=8 and y=2. To evaluating the value of expression.…

Q: if 3x - 2 = 13, then 3x = 15 what is the property?

A: Given statement is "if 3x-2=13 then 3x=15". To determine the property. Solution: We have, 3x-2=13…

Q: b) y = -2x2

A:

Q: Divide. 3x? - 3х- 18 х? + 2х- 15 4x - 8x + 16 х +x-20 3x? - 3х- 18 х? + 2х- 15 (Simplify your…

A:

Q: Evaluate x2 - 4(x - y) for x = 8 and y = 3.

A:

Q: If x = 5, why does x2 + x = 30?

A: The given equation is x2+x=30

Q: Simplify the ff: -8t3+36t2-64 2t-2

A:

Q: Can x2- Cy3 be written as : x ² - Cy3=0? 3 =0 x2 + Cy3 = 0 or %3D Explain.

A:

Q: What is the simplest form of the expression 6x(x − 4) − 16x2 − (9x − 1)?   A.  -10x2 − 33x +…

A:

Q: If 4x = 7, what does 4-2x equal?

A: Given that 4x=7 now 4-x=14x

Q: Why is (-3x2)(2x-5) not simplified? What must be done to simplify the expression?

A:

Q: What is the value of 2/3x-3=5

A:

Q: Evaluate 7r- 15 when r = 3 and s = 5. - %3|

A:

Q: Why did he use n=3k, n=3k-1, and n=3k-2

A:

Q: Which expression is equivalent to (x-2)(x+4)? *

A: for making complete square add and subtract half of coefficient of x.

Q: If 7x + 4 = 18 , what is the value of x + 5 ?

A:

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.