Question

Fórmula de bhaskara de x²-7x+12=0

Answer 1

Δ=b²-4.a.c

Δ=-7²-4.1.12
Δ=49-48
Δ=1

$\frac{7+-1}{2.1}$

x'=7+1/2=8/2=4
x''=7-1/2=6/2=3