Question

5х^2 -(х-10) =2(5х+5)

Answer 1

5х^2 -(х-10) =2(5х+5)
5х^2 -x+10=10x+10
5x^2 -11x = 0
x (5x-11) = 0
x=0 или 5x-11=0
              5x=11
              x=2.2

Answer 2

5x²- x + 10 - 10x - 10 = 0
5x²- 11x = 0
x(5x - 11) = 0
x = 0; 5x - 11 = 0; 5x = 11; x = 2,2.
Ответ: 0; 2,2