Question

(3-2x)²-2x(2x+3)=45
помогите решить

Answer 1

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

Answer 2

9-12x +4x² -4x² -6x = 45

9 - 18x = 45

-18x = 45 -9

-18x = 36

x =-2