X∧4+4Y∧4X∧3-3X∧2-2X+216X∧2-9Y∧2+32X+16X∧4+X∧2Y∧2+Y∧4
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X∧4+4Y∧4X∧3-3X∧2-2X+216X∧2-9Y∧2+32X+16X∧4+X∧2Y∧2+Y∧4X∧4+4Y∧4X∧3-3X∧2-2X+216X∧2-9Y∧2+32X+16X∧4+X∧2Y∧2
X∧4+4Y∧4X∧3-3X∧2-2X+216X∧2-9Y∧2+32X+16X∧4+X∧2Y∧2+Y∧4
X∧4+4Y∧4
X∧3-3X∧2-2X+2
16X∧2-9Y∧2+32X+16
X∧4+X∧2Y∧2+Y∧4
X∧4+4Y∧4X∧3-3X∧2-2X+216X∧2-9Y∧2+32X+16X∧4+X∧2Y∧2+Y∧4
x^4+4y^4
=x^4+4y^4+4x²y²-4x²y²
=(x²+2y²)²-4x²y²
=(x²+2y²+2xy)(x²+2y²-2xy)
X³-3X²-2X+2
=(x³+1)-(3x²+2x-1)
=(x+1)(x²-x+1)-(x+1)(3x-1)
=(x+1)(x²-x+1-3x+1)
=(x+1)(x²-4x+2)
16X²-9Y²+32X+16
=(4x+4)²-9y²
=(4x+4-3y)(4x+4+3y)
X^4+X²Y²+Y^4
=x^4+y^4+2x²y²-x²y²
=(x²+y²)²-x²y²
=(x²+y²+xy)(x²+y²-xy)
计算 (-x+y)∧4×(x-y)∧2×(y-x)∧3
3(x-y)²×[-4/15(y-x)³][-3/2(x-y)∧4]
X∧4+4Y∧4X∧3-3X∧2-2X+216X∧2-9Y∧2+32X+16X∧4+X∧2Y∧2+Y∧4
x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x²
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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