Question

incorrect 2 tries left. please try again. simplify the expression. 3x + 7(3x + 4)

Explanation:

Step1: Apply distributive property

$3x + 7(3x + 4)=3x+7\times3x + 7\times4=3x + 21x+28$

Step2: Combine like - terms

$(3x + 21x)+28 = 24x+28$

Answer:

$24x + 28$