Question

9x^2+9x=180.find the value of x​

Answer 1

x^2 + x = 20

x^2 + x - 20 = 0

x^2 + 5x - 4x - 20 = 0

x(x+5) - 4(x+5) = 0

(x+5)(x-4) = 0

the values of x are -

-5 , 4

Answer 2

hey mate your answer↓

9x^2+9x-180=0

dividing by 9

x^2+x-20=0

x^2+5x-4x-20=0

x(x+5)-4(x+5)=0

(x+5)(x-4)=0

x=-5 or x=4

hope it helps you!