x³+3x²-4x-12=0
x³+4x+2-11x+30=0
Obs:Quero a conta inteira,passo á passo.
x²*(x + 3) - 4*(x + 3) = (x + 3)*(x² - 4)
x1 = -3
x2 = -2
x3 = +2
pronto
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Verified answer
x³+3x²-4x-12=0
x²*(x + 3) - 4*(x + 3) = (x + 3)*(x² - 4)
x1 = -3
x2 = -2
x3 = +2
pronto