Question

(3-2x)²-2x(2x+3)=45помогите решить

Answer 1

9-12x +4x² -4x² -6x = 45

9 - 18x = 45

-18x = 45 -9

-18x = 36

x =-2

Answer 2

${(3 - 2x)}^{2} - 2x(2x + 3) = 45 \\ 9 - 12x + 4 {x}^{2} - 4 {x}^{2} - 6x = 45 \\ 9 - 18x = 45 \\ - 18x = 36 \\ x = - 2$
Ответ: -2