Question

Aplicando a fórmula de Bhaskara, resolva as seguintes equações do 2 grau
1)x²-5x+6=0
2)x²-8x+12=0
3)x²+2x-8=0
4)x²-5x+8=0
5)2x²-8x+8=0
6)x²-4x-5=0
7)-x²+x+12=0
8)-x²+6x-5=0
9)6x²+x-1=0
10)3x²-7x+2=0

Com calculos!!!!!!!

Answer 1

1) x² -5x + 6= 0
Δ= (-5)² - 4.1.6
Δ= 25 - 24
Δ= 1
x= $\frac{5 +- \sqrt{1} }{2.1}$
x= $\frac{5+-1}{2}$
x₁ = $\frac{5 - 1}{2}$
x₁ = $\frac{4}{2}$
x₁ = 2 
x₂= $\frac{5+1}{2}$
x₂ = $\frac{6}{2}$
x₂ = 3