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  • DIvide x3+x2-14x-24 by x+2

    DIvide x3+x2-14x-24 by x+2
    Solution x2-x-12/)x-2)x3+x2-14x-24
    x3+2x/-2x2-14x
    -x2-2x/-12x-24
    -12x-24/0
    In this example we see that x+2 is a factor of x3+x2-14x-24,as the remainder is zero.
    Thus x3+x2-14x-24÷(x+2)=x2-x-12 with zero remainder
    so x3+x2-14x-12/x+2=x2-x-12
    數(shù)學(xué)人氣:564 ℃時(shí)間:2020-01-29 01:51:39
    優(yōu)質(zhì)解答
    (x³+x³-14x-24)÷(x+2)=x²-x-12.由x³+x²-14x-24=x³-x³-12x+2x²-2x-24=x(x²-x-12)+2(x²-x-12)=(x²-x-12)(x+2).
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