计算(16x∧4+y∧4)(4x∧2+y∧2)(2x-y)(2x+y)
计算:(3x-4y)-[-(2y+x)+(x-3y)]-6x
计算4xy+(x-2y)的平方+(x+3y)(3y-x)
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
计算:(x-4y)(2x+3y)-(x+2y)(x-y).
1.((y+2x)(-2x+y)+4(x+2y)^2)/3y 2.(2(x-y)^3-8(x-y)^2(x+y)+6y(
(x-2y)²+(2x-4y)(x+y)+(x+y)²
因式分解:16(x+ y)∧2 +121(x-y)∧2-88(x +y)(x-y)
(X-3Y)(X+3Y)-(X+2Y)(X-4Y)-(2X-Y)2的平方
计算 1.(-2x)^3-3x乘(x-2x^2) 2.【(x+2y)^2-(x-2y)(x+2y)】÷4y
计算:(1)2/(x+y)+4y/x²-y²(2)x²/x+y-x+y
计算:1/(2x) - 1/(x+y)((x+y)/(2x) - x - y)
计算 (2y-3)(y+4) (-5x+2)∧2 (2x-3y)(2x+3y) (2x-5)(x-2)-(-4+3x)(