Question

(3x-2)²-15=7-12x срочно помогите к/р​

Answer 1

9x^2-12x+4-15=7-12x
9x^2-11=7
x^2=2
x=+_/2 или -_/2

Answer 2

Объяснение:

${(3x - 2) }^{2} - 15 = 7 - 12x \\ {9x}^{2} - 12x + 4 - 15 = 7 - 12x \\ {9x}^{2} - 12x + 12x = 7 - 4 + 15 \\ {9x}^{2} = 18 \\ {x}^{2} = 2$