Question

Resolva as equações utilizando o método de Bhaskara.
a)4x^2+12x+5=0
b)x^2+10/3x+1=0
c)x^2+13x+40=0
d)x^2+15/2x+9=0

Answer 1

as formulas pra achar o delta e as raizes sao :Δ=b²-4αc e -b+-√Δ/2α..

a)Δ=12²-4.4.5
Δ=144-80
Δ=64

-12+-√64/2.a

X1=-12+8/8=4/8

x2=-12-8/8=20/8

pega essa base e faz as demais