Question

x(x – 1) – (x – 5)2 = 11.​

Answer 1

Ответ:

Объяснение:

X(x – 1) – (x – 5)² = 11

x²-x -(x²-10x+25)=11

x²-x-x²+10x-25-11=0

9x=36

x=4