
计算(1)(2x2y)3?32xy(2)(?23x6y5)÷32x2y5(3)(3x+2y)(3x-2y)(4)(2x-1)2
计算(1)(2x2y)3?32xy(2)(?23x6y5)÷32x2y5(3)(3x+2y)(3x-2y)(4)(2x-1)2....
计算(1)(2x2y)3?32xy(2)(?23x6y5)÷32x2y5(3)(3x+2y)(3x-2y)(4)(2x-1)2.
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(1)原式=8x6y3?
xy
=12x7y4;
(2)原式=-
x4;
(3)原式=9x2-4y2;
(4)原式=4x2-4x+1.
3 |
2 |
=12x7y4;
(2)原式=-
4 |
9 |
(3)原式=9x2-4y2;
(4)原式=4x2-4x+1.
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