Question

equaçoes do 2 grau:
a) 3x2-7x+4=0
b) 9y2-12y+4=0

Answer 1

3x2-7×+4=0
Delta= b2-4ac
Delta=-7ao quadrado-4(3)(4)
Delt= 49-48
Delt=1
x=-b+ou- raiz de delta/2a
x= -(-7)+ou- raizde 1/2×3
×i=+7+ 1/6
×1=8/6
x1=4/3
x2=7-1/6
x2=6/6
x2=1