Please help would mean the world to
x^2+25x+150
2x+25
x^2+10x+150
4x+150

A = L * W
Given:
L = x + 10 and W = x + 15
So
A = (x + 10)(x + 15)
A = x^2 + 10x + 15x + 150
A = x^2 + 25x + 150
Answer
x^2 + 25x + 150