Noah says that9x-2x+4x is equivalent to 3x, because the subtraction sign tells us to subtract everything that comes after 9x. Elena says that 9x-2x+4x is equivalent to11x, because the Subtraction only applies to 2x. Do you agree or disagree with either of them?Explain your reasoning

Q: What is the value of 6(x – 2)(x – 3) + 4(x – 2)(x – 5) when æ = -3

A: We find out the value of given function at x=-3.

Q: 7x2y is equivalent to xy2 True O False

A:

Q: The value of 7 nickels is 5 * 7 cents. Likewise, the valueof x nickels is 5x cents. If the money box…

A: Since 1 nickel is equal to 5 cents, so x nickels are equal to 5x cents. Same as, a dime is worth 10…

Q: Explain how to simplify the expression 7x - [3x - (2x - 4) + 2] - x

A: The given expression is as below :         7x-[3x-(2x-4)+2]-x

Q: The last one isn't 7.5... why?

A: Given graph

Q: 2x^2 +3x +4 Has 3 terms but how? Explain

A: Compare with polynomial to get the explanation

Q: Write the phrase as an expression. 9 fewer than 23 expression:

A: Here we have to write an expression for given phrase as shown below

Q: Are the terms 6z and 19y like terms? Explain.

A:

Q: what value makes 5x+7=3x-5 true

A:

Q: p + 4p can be simplified to 5p2

A: p+4p

Q: Write an equivalent expression for (x- 6)(x - 3) by using the distributive property and by modeling.

A: The distributive property is a·b+c=a·b+a·c. To simplify expression x-6x-3 consider x-6 as a, x as b…

Q: Evaluate, 4(x- (-11)) when x = -22 and -2b + 6b + 0.22 when b=-3

A: We need to find the value of  4x--11 when x=-22      4x--11 = 4-22--11 = 4-22+11 = 4-11 = -44

Q: What is the answer to 6x-4 (2x-5) <10 or 5x+9<2x21?

A: In the question we have to find the solution of the question i.e. range of x.

Q: Find an expression which represents the difference when (x + 4y) is subtracted from (-8x + 3y) in…

A:

Q: What is the value of the expression 2 x 5 + 3y if y = 2?

A:

Q: Why is -4x-5 equal to positive 20? Justify your reasoning in 2 ways. (e.g. with words, diagrams, a…

A:

Q: Find an expression which represents the difference when (-2x- 8y) is subtracted Trom (-3x - 7y) in…

A: Subtraction

Q: The length of the rectangle can be represented by (x + 4), and its width can be represented by (2x -…

A: the perimeter of the rectangle is given by  p=2l+w here we have l=x+4 w=2x-7

Q: Translate into an algebraic expression. The product of eight and y, plus two, is all multiplied by…

A: Here, the statement of the expression is, "The product of eight and y, plus two, is all multiplied…

Q: Simplify by Combining Like Terms: 5n -n-3+12d-6-3d + (-12d)

A: To combine the liked terms

Q: Evaluate the expression if x=−6x=-6 and y=4y=4 and z=−7z=-7 x2−y−zx2-y-z

A: The value of the variables is given below: x=-6y=4z=-7   The expression if given as: x2-y-zx2-y-z…

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

A: We need to evaluate  a+4×7-2(b-1)=a+28-2b+2=a-2b+30

Q: which expression is equivalent to 5.7x5.7x5.7

A: Given expression:  5.7×5.7×5.7

Q: I understand how you got the 8 and x +1 but how did you get the 8x?

A: To solve: 4x−43x÷x2−9+86x2 We know that ab÷cd = ab×dc

Q: Explain the meaning of the notation 3R1 + R2  ------- R2

A: Given ,                 3R , + R2  →  R2

Q: If x = 8 and y =  –4, what is the value of the expression (x + y)(x + y)?

A:

Q: Answer with true @/ /2x-5/4 then 2 false or

A: To find Whether the given statement is true or false

Q: Are the terms 2x^3y and 2yx^2 like terms explain?

A: Two or more terms in a polynomial are like terms if they have the same variable (or variables) with…

Q: What expressions are equivalent to 2/9(9x+6)-1/2(8x-4)

A: We have to evaluate what expressions are equivalent to 299x+6-128x-4.

Q: Which expression is equivalent to (4x ²y 2 + 6x 2y 3- 12x 3y 2)?

A:

Q: Evaluate the expression for x = - 9 and y = - 7. 2х - Зу 2x - 3y =

A: Put the value of x and y in the given expression.

Q: Explain how you would simplify (3-¹-2-2)-1 and also how you would simplify (3-¹ + 2-²)-¹.

A:

Q: which expression is equivalent to (3a+7)(2a-5)

A:

Q: the terms 2x3y and 2yx2 like terms? Explain

A: These are not like terms because x^3y and yx^2 are not same variables

Q: equafion ,3 *+33x-34

A: Explanation: x3-10x2+33x-34  Is not a perfect cube. As putting x=2 we…

Q: Vivian says that the expressions 5x+10+3x-12 and 2(4x-1) are not equivalent. Do you agree? Explain.

A: Solution )By solving equation                5x + 10 + 3x - 12               = 5x + 3x + 10 - 12…

Q: Describe why the statement is incorrect

A: To integrate:∫-212x3dx Solving the given integral.…

Q: What is simplify the expression by combining like terms -5(x+4)-3x-4=

A:

Q: The expression 2a(b2-1) -4ab2(9+2) can also be written as?

A: Expressions

Q: 1 8= -2r+5

A:

Q: Which expression is equivalent to -9k-3-9k-4−9k−3−9k−4?

A: We have to find the equivalent expression.

Q: Your friend keeps getting an answer of 30 when simplifying 7 + 8(2). What mistake is he making and…

A: 7+82 His mistake is, First he is adding 7 and 8, then he is multiplying the result with 2 to get 30.…

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

A:

Q: Alex tried to simplify the expression (2x + 3) - (4x + 2) by first writing 2x + 3 - 4x + 2 and then…

A: Expression consist of a number and arithmetic operators +,×,÷,-

Q: Subtract. (6x* + 9x3 - 7) - (2x? - 7x + 5) (6x* + 9x³ - 7) - (2x? - 7x +5) =| (Simplify your…

A: A polynomial in a variable x is a function of the form anxn+an-1xn-1+···+a1x+a0. This polynomial has…

Q: (2x2+1)* (4x)– 2x²(4) (2x² +1)°(4x) 3. 9. (2x2+1)8

A:

Q: What is the answer to 2x-7 =54

A: Finding the value of ' x '

Q: (5x-3) - (-ax²+8)

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.