Question

Qual é a resposta ? x+5x a quadrado =2

Answer 1

x+5^(2)=2

x+5^(2) -2=0

A=5

B=1

C=-2

Δ = b² –4ac

Δ = 1^2 -4 × 5 × (-2)

Δ = 1 + 40

Δ = 41

x = – b ± √Δ ÷ 2a

x= -1 ± √41 ÷ 2 × 5