Question

evaluate the expression when x = 8 and y = -2. 2(2x + 3y) + 4(x - 2y) = ?

Explanation:

Step1: Expand the expression

$2(2x + 3y) + 4(x - 2y) = 4x + 6y + 4x - 8y$

Step2: Combine like terms

$4x + 4x + 6y - 8y = 8x - 2y$

Step3: Substitute x=8, y=-2

$8(8) - 2(-2) = 64 + 4$

Step4: Calculate the final value

$64 + 4 = 68$

Answer:

68