(x+y)^2-14(x+y)+49y^2
1个回答
(x+y)²-14(x+y)+49y²
=[(x+y)-7y]²
=(x-6y)²
相关问题
分解因式:(x+y)2-14(x+y)+49=______.
分解因式:(x+y)2-14(x+y)+49=______.
(x+y)2-14(x+y)+49的分解因 式
1、9(2x-y)²-16(x+2y)² 2、-14xy-x²-49y² 3、(
一.分解因式1.x^2(x-y)+(y-x)2.(x+y)^2-14(x+y)+49 3.7x^n+1-14x^n+7x
因式分解:(1)x(x-y)+y(x-y)-(x-y)2(2)-14xy-x2-49y2(3)9(a+b)2-6(a+b
1x+2y=49.4怎么解2x+3y=35.21x+1y=14.2怎么解
9(x+y)^2-49(x-y)^2
(1)32x^3-2x (2)-14xy-x^2-49y^2
1.49+14x+x²-y²