Question

quais sao as raizes da equacao 1/2 x² -x+12/3=2x?

Answer 1

x²/2-x+12/3=2x
3x²-6x+24=12x
3x²-6x+24-12x=0
3x²-18x+24=x

Δ=-18²-4.3.24
Δ=324-288
Δ=36

X=18+-√36/2.3

X=18+-6/6

X'=18+6/6 =  24/6 =  4 

X''=18-6/6 = 12/6 = 2 

S=[4,2]