2x的2次方减12x 18的分解因式-搜答案-智慧作业帮

7x^2-63=7(x^2-9)=7(x+3)(x-3)4x^2-16=4(x^2-4)=4(x+2)(x-2)(2x+1)^2-x^2=4x^2+4x+1-x^2=3x^2+4x+1=(3x+1)(

x的3次方减2x加1=x³-x-(x-1)=x(x²-1）-(x-1)=x(x+1)(x-1)-(x-1)=(x²+x)(x-1)-(x-1)=(x-1)(x²

x(2x+y)(2x-y)

x^3+6x^2+11x+6=x^3+6x^2+9x+2x+6=x(x+3)^2+2(x+3)=(x+3)[x(x+3)+2]=(x+3)(x+1)(x+2)

1：（40/29-11/29）×18+92=1102：x=0,y=4；x=2,y=3；x=3,y=2；x=6,y=0就这些,负数你们用不到吧

X的4次方减18X的2次方加81=(x²-9)²=(x+3)²(x-3)²

2x^3-7x^2-4x

x^6-y^6-2x³+1=x^6-2x³+1-y^6=(x^6-2x³+1)-y^6=(x³-1)²-(y³)²=(x³

-x的4次方+2x的三次方-x2次方=-x²(x²-2x+1)=-x²(x-1)²

x的4次方+2x平方-8=x的4次方+2x平方+1-1-8=(x平方+1)平方-9=(x平方+1+3)(x平方+1-3)=(x平方+4)(x平方-2)=(x平方+4)(x-√2)(x+√2)

3x的3次方-12x的平方y+12xy的2次方=3x(x^2-4xy+4y^2)=3x(x-2y)^2

x的4次方+x的2次方—6=(x^2+3)(x^2-2)=(x^2+3)(x+√2)(x-√2)

X的4次方-3x平方+2=(x²-1）(x²-2）=（x-1)(x+1)(x-√2）(x+√2)

(x－1)(x＋3)^2

-24x^2y-12xy^2+28y^3解,得：==-4y(6x^2+3xy-7y^2)分解因式(x-y)²-(y-x)也是因式分解,解,得：==(x-y)^2+(x-y)==(x-y)[(

原式=3x(2x²-6x+1)

x^(n+2)-2x^(n+1)+x^n=x^n(x²-2x+1)=x^n(x-1)²^表示指数,x^n表示x的n次方.

18x的3次方-27x的4次方-3x的2次方=-3x^2(9x^2-6x+1)=-3x^2(3x-1)^2

x的4次方-x的3次方-7x的2次方+x+6=（x-1)(x^3-7x-6)=(x-1)(x+1)(x^2-x-6)=(x-1)(x+1)(x+2)(x-3)

x⁴+x³+4x²+3x+3=x⁴+x³+x²+3x²+3x+3=x²(x²+x+1)+3(x²