Question

3x2-2=2x2+x equaçao do 2 grau

Answer 1

6/4(seis sobre quatro), inexata.

Answer 2

3x²-2=2x²+x
3x²-2-2x²-x=0
x²-x-2=0

▲ = b²-4ac =
1²-4*1*(-2)=
1+8 = 9

-b+ou-raiz de ▲/2a
-1+ou-raiz de 9 / 2*1
x' = -1+3/2
x' = -2/2
x'= -1

x" = -1-3/2
x" = -4/2
x" = -2