Question

把下列分解因式：(1) (x+y)^-16(x-y)^ (2) a^(a-b)^-b^(a+

Answer 1

1) =(x+y-4(x-y))(x+y+4(x-y))=(5y-3x)(5x-3y)

2)=(a(a-b)+b(a+b))(a(a-b)-b(a+b))=(a^+b^)(a^-2ab-b^)

3)=(x+y+z+x-y-z)(x+y+z-x+y+z)=4x(y+z)

4)=(x+y-7)^