5a＾2+10a(b+c)
问题描述：
5a＾2+10a(b+c)
(2xy)＾2-3(2x+y)
5(m;-2n)-(m-2n)＾2
x＾2-2xy+xz-2yz
x＾3+x＾2-4x-4
答
5a＾2+10a(b+c)=5a[a+2(b+c)]=5a(a+2b+2c)(2x+y)＾2-3(2x+y)=(2x+y)(2x+y-3)5(m-2n)-(m-2n)＾2=(m-2n)[5-(m-2n)]=(m-2n)(2n-m+5)x＾2-2xy+xz-2yz=x(x-2y)+z(x-2y)=(x+z)(x-2y)x＾3+x＾2-4x-4=x^2(x+1)-4(x+1)=(x^2-4...