18. Which of the following expressions is equivalent to (5x - 4y) (3x – 2y)? Select all that are equivalent. 15x²-8y² + 22xy 3x (5x - 4y) - 2y(5x – 4y) 15x²2y(5x - 4y) - 12xy 15x² - 22xy + 8y²2

Q: b. If 8x − 0 = 3x + 5 , then x=

A: Consider the provided equation,

Q: Add. (7y +y- 5) + (5y² - y -6) (7y? + y- 5) + (5y² - y-6) =D (Simplify your answer.)

A:

Q: .22メ-3 when x=-3 G-メフナス

A:

Q: Add (7x6 + 10x2 – 10) + (3x6 – 6x3 + 4). O 10x6 + 4x2 – 6 - O 10x6 + 4x3 – 6 O 10x6 – 6x3 + 10x2 – 6…

A:

Q: Evaluate. (2x+1)/x2+x-1  with endpoints 3 and 1.

A: Consider the given function: fx=2x+1x2+x-1 Now plug-in the value x=3 in the function. This gives,…

Q: X+X+y if x = 9 and y = 3

A: Given data is x = 9 and y = 3   find x + x + y = ?

Q: –x + 3y = 6  x + 3y = 18

A:

Q: (5+3)•(9-4)=

A:

Q: Simplify each expression. 1) (-3.x* + x²)+ (6x² - 2x + x*) 2) (5n + 2n*) - (4n³ – 4n* – 7n)

A:

Q: he LCD of 7/6x and 8/3x+12

A: LCD is the lowest common multiple of the denominators of a set of fraction .

Q: Which of the following is equivalent to (5x - 9)(5x + 9)? 10x² – 18 O 25x2-81 25x2-90x-81 25x2+81

A:

Q: 7. Simplify and evaluate. (2x³y²)³ a) (x’y (9y)? b) for y=-2 (3y*)

A: Given: a)2x-3y23x3y-42b)9y23y-13

Q: 7. Simplify. Write the answer in standard form. 2x(-2х- 3) -4x 3 -4x - 6x O B x² - 3 -4x – 6 | O D

A: We will simplify the given expression.

Q: (2x + 11)° 14x – 3)º

A:

Q: 5. Simplify. Write the answer in standard form." (3-2x +2x)- (4x – 5+3x)

A: To simplify 3-2x+2x2-4x-5+3x2

Q: perform the indicated operation  ( 8r2+5r-14)+(-7r2-17r+7)=

A: