Question

Qual a solução? 4x²-200x=0

Answer 1

Olá,

4x²-200x=0
4x ( x - 50 ) = 0

4x = 0
x = 0

x - 50 = 0
x = 50

S = { 50 , 0 }

Boa noite !

Answer 2

b² = 200² 
Δ = 40000

$\sqrt{40000} = 200$

$\frac{-200-200}{2*4} = \frac{-400}{8} = -50$

$\frac{-200+200}{2*4} = \frac{0}{8}$ = 0