robert7248
23.12.2020 •
Mathematics
What conclusions can you draw about the roots of the equation x^3+x^2-2x+12=0
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Ответ:
x=-3
Step-by-step explanation:
If x=-3, then
x³+x²-2x+12=-27+9+6+12=-27+27=0
If this is true, then x+3 is a factor. So:
x³+x²-2x+12/x+3=x²-2x+4
So the factors of x³+x²-2x+12 are:
(x+3)(x²-2x+4)
((x²-2x+4) has no real roots)
Ответ:
you got this
Step-by-step explanation: