-12x²y³与8x²y²的公因式 是-4x²y² 还是4x
多项式4x(y+1)²+8x(y+1)(y-1)的公因式
8x²y+7x+1 和4x²+3+5这两个多项式公因式是?-12x²y和8xy²
用提公因式法计算:x(x-y)²-y(y-x)²
a(x-y)与a(y-x)的公因式是?
计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
①分解因式:y²+2y-15= ②多项式ax²-4a与多项式x²-4x+4的公因式是
(2x-y)²-4(x-y)(x+2y)
化简:(2x-y)²-4(x-y)(x+y)
分解因式:-12x^4y+8x²y²-4x²y³
(x+y)²+4(x+y)-5
已知x、y是实数,且x²+y²-4x-6y+12=0.求x²+y²的最值,x-y
x^4-16,x³-8,x²-7x+10三个多项式的公因式是