Question

-2x²+5x encontre a raiz ​

Answer 1

-2x² +5x = 0

x(-2x +5)=0 ==> x=0 ✓

(-2x+5)=0 => 2x=5 => x= 5/2 ✓

S: {0, 5/2}

Answer 2

Resposta:

x₁ = 0

x₂ = 5/2

Explicação passo-a-passo:

-2x²+5x = 0

-x (2x-5)=0

x=0

2x-5=0

2x=5

x=5/2

x₁ = 0

x₂ = 5/2

S= {0, 5/2}