Question

4.) 8(2x + 7) + 5(10x + 1)

Explanation:

Step1: Apply distributive property

$8(2x+7) + 5(10x+1) = 16x + 56 + 50x + 5$

Step2: Combine like x terms

$16x + 50x + 56 + 5 = 66x + 56 + 5$

Step3: Combine constant terms

$66x + (56 + 5) = 66x + 61$

Answer:

$66x + 61$