Question

Determine as raiz:
y = 4x - x²

Answer 1

y= 4x-x²
4x-x²=0
x(4-x)=0

x=0 ou 4-x=0
            -x=-4.(-1)
             x-4

S:{ 0, 4 }

Answer 2

Resposta:

Y=4×-×2=4×-×2.-×2+4×=0