Answer:
x = 14
Step-by-step explanation:
30 = 3x - 12 (vertically opp)
30 + 12 = 3x
42 = 3x
42÷3 = x
14 = x
5/4 would be your answer.
4
4x4x4=64
B
2x^2+7x+5
= 2x^2+2x+5x+5
= (2x^2+2x)+(5x+5)
= 2x(x+1)+5(x+1)
=(x+1)(2x+5)