Question

fatorando e resolvendo
x² - 20x = 0
qual a solução do problema?

Answer 1

Resposta:

x² - 20x = 0

delt=(-20)²-4.1.0

delt=400.0

delt=400

x=$\frac{20+-20}{2}$

x'=$\frac{20+20}{2} =\frac{40}{2}= 20$

x''=$\frac{20-20}{2} =\frac{0}{2}$