Question

(x-11)(x+2)+(x+5)(x+4)=6

Answer 1

Решение верно!!!!!!!!

Answer 2

(x-11)(x+2)+(x+5)(x+4)=6

x^2-11x+2x-22+x^2+4x+5x+20=6

2x^2-2=6

2x^2=8

x^2=4

x=2

Ответ: x=2