DIvide x3+x2-14x-24 by x+2Solution x2-x-12/)x-2)x3+x2-14x-24x3+2x/-2x2-14x-x2-2x/-12x-24-12x-24/0In 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 remainderso x3+x2-14x-12/x+2=x2-x-12
问题描述：
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
答
是考SAT吗？
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).