1,5x (3 + 2x = 3 x (x + 1) -30

Question

1,5x (3 + 2x = 3 x (x + 1) -30

Answer 1

1.5x(3+2x)=3x(x-1)-30
4/5x+3x^2=3x^2+3x-30
3x^2-3x^2=3x-4,5x-30
0=-1.5x-30
1.5x=30
x=20