Question

i need help with #1 i don’t understand it

Answer 1

Answer:

x = -16 or x = 7

Step-by-step explanation:

x2 + 7x = 144

x2 + 7x - 144 =0

(x + 16)(x - 7) = 0 By factorization.

Therefore,

x = -16 or x = 7