ax²+ay²-2axy-ab²
=a(x²+y²-2xy -b²)
=a[(x-y)²-b²]
=a(x-y+b)(x-y-b)
x²-6xy+9y²-4x+12y
=(x-3y)²-4(x-3y)
=(x-3y)(x-3y-4)
9a²+18a+9-b²-4b-4
=9(a²+2a+1)-(b²+4b+4)
=9(a+1)²-(b+2)²
=[3(a+1)+(b+2)][3(a+1)-(b+2)]
=(3a+b+5)(3a-b+1)
ax²+ay²-2axy-ab²和x²-6xy+9y²-4x+12y和
1个回答
相关问题
-
x²-10xy+9y² 3x²+10x-8 ax²+ay²-2axy-
-
ax^2-2axy+ay^2-2x+2y
-
解分因式3ax^2-6axy+3ay^2;x^4(x-2y)+x^2(2y-x);a^2-2ab+b^2-c^2；102
-
因式分解,要睡觉啦①3ax²+6axy+3ay² ②a²（a-3）-a+3 ③（x²+y²）²-4x²y²
-
x^2+6xy+9y^2-4x-12y+4
-
因式分解X^2+9Y^2+4-6XY+4X-12Y
-
x∧2-12xy+36y∧216ax∧4+24a∧2b∧2+9b∧2-2xy-x∧2-y∧24-12(x-y)+9(x-
-
使(ax²-2xy+y²)-(-ax²+bxy+2y²)=6x²-9x
-
分解因式x^2-4xy+4y^2-6x+12y+9
-
若4x^2+|x-6|+9y^2=12xy,则x+y=