雨淋霖
春芽
共回答了13个问题采纳率:84.6% 举报
1:(2a-b)*(4a^2+2ab+b^2)
2:=(根号a/根号2+4*根号2*a^2)*(根号a/根号2-4*根号2*a^2)
3:全部展开看看,挺麻烦,自己分解吧.
4:(c^2+ab)^2-(a+b)^2*c^2=(c^2+ab)^2-(ac+bc)^2=[(c^2+ab)+(ac+bc)]*[(c^2+ab)-(ac+bc)]
5:=(x-5/2)^2-13/4=(x-5/2+根号13/2)*(x-5/2-根号13/2)
6:=(x-根号2)^2-7=(x-根号2+根号7)*(x-根号2-根号7)
7:=(根号3*x+2y/根号3)^2-7/3*y^2=(根号3x+2y/根号3+根号7/根号3*y)*(根号3x+2y/根号3-根号7/根号3*y)
8:=(x^2-2x-3)*(x^2-2x-4)=(x-3*(x+1)*[(x-1)^2-5]=(x-3*(x+1)*[(x-1+根号5)*(x-1-根号5)】
1年前
8