Question

Помогите

1) f(x) = x^2-x
2) f(x) = - x^2+2x
3) f(x) = 2x^4-x
4) f(x) = 2x^3-9x^2+12y-8

Answer 1

Ответ:

1)f(x) x²-x

x²-x=0

x²=x

x=x

2) x²+2x=0

x(x+2)=0

x=0. x=2

3)2x⁴-x=0

x(2x³-1)=0

x=0. 2x³=-1

x³=-2-1

x=27

4) 2x³-9x²+12y-8