5 {x}^(2) - 2x + 3x = 9 {x}^(2) + 9x please fast please fast​

Question

`5 {x}^(2) - 2x + 3x = 9 {x}^(2) + 9x`
please fast please fast​

Answer 1

x = -2

simplify:

-4x^2 - 8x = 0

Answer 2

`5 {x}^(2) - 2x + 3x = 9 {x}^(2) + 9x \\ 5 {x}^(2) + x = 9 {x}^(2) + 9x \\ 5 {x}^(2) - 9 {x}^(2) = 9x - x \\ - 4 {x}^(2) = 8x \\ - 4x = 8 \\ x = ( - 8)/(4) = - 2 \\ x = - 2 \\ thank \: you`