Question

3x^2_3=2(x_1)^2 equacao de 2 grau com a formula de baskara obg

Answer 1

3x²-3=2(x²-2x+1) ⇒ 3x²-3=2x²-4x+2 ⇒ x²-4x-5=0
Δ=b²-4ac⇒16-4.1.-5=16+20=36
x=-b =/- √Δ/20= 4+/-6/2
x₁= 4+6/2=10/2=5
x₂=4-6/2=-2/2=-1