Question

dada a função y= -3x²+5x+2 ?????

Answer 1

y=-3 x^{2} +5x+2
-3 x^{2} +5x+2=0
 a=-3 b=5 c=2
Δ=25-4(-3).2
Δ=25+24=49
X= -5+ou-√49/2.(-3)
x'=-5+7/-6=-4
x"=-5-7/-6=-2