Question

3.）6(4x + 9) - 8(5x - 8)

Explanation:

Step1: Apply distributive property

$6(4x+9) - 8(5x-8) = 24x + 54 - 40x + 64$

Step2: Combine like x terms

$24x - 40x = -16x$

Step3: Combine constant terms

$54 + 64 = 118$

Answer:

$-16x + 118$