Question

РЕШИТЕ УРАВНЕНИЕ:
4-х*(х+8)=11-х^2

Answer 1

4-х²-8х=11-х²
4-x²-8x-11+x²=0
-8x-7=0
-8x=7
x=-7/8

Answer 2

=>4-x^2-8x=11-x^2
4-8x=11-x^2+x^2
4-8x=11
8x=4-11
x=-(7/8)