Question

10题分解因式

1.16x^4-32^3+56x^2 2.a(a-b)+(a-b)^2 3.a(m-3)+3(3-m) 4.5x(x-y)+2y(-x+y) 5.a^2-2a(b+c)+(b+c)^2 6.36x^4-12x^y+y^2 7.x^2-4x+3
8.x^4-x^3y+1/4x^2y^2 9.3x^2y-2x^2+12xy-8x 10.x^2+x-20

Answer 1

1.原式=8x^2(2x^2-4x+7)

2.原式=(a-b)(2a-b)

3.原式=(m-3)(a-3)

4.原式=(x-y)(5x-2y)

5.原式=(a-b-c)^2

6.原式=(6x^2-y)^2

7.原式=(x-1)(x-3)

8.原式=x^2[x-(1/2)y]^2

9.原式=3xy(x+4)-2x(x+4)=x(3y-2)(x+4)

10.原式=(x+5)(x-4)