整式的乘除法应用题,(1)(x-y)(x+y)(x²-查字典问答网
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  整式的乘除法应用题,(1)(x-y)(x+y)(x²+y²)(2)(2x-3)²(2x+3)(2x-3)(3)(6m²n-6m²n²-3m²)÷(-3m²)(4)(5a²b-3ab-1)(-3a²)(5)(-3x²y)³(-2xy³z)²

  整式的乘除法应用题,

  (1)(x-y)(x+y)(x²+y²)

  (2)(2x-3)²(2x+3)(2x-3)

  (3)(6m²n-6m²n²-3m²)÷(-3m²)

  (4)(5a²b-3ab-1)(-3a²)

  (5)(-3x²y)³(-2xy³z)²

1回答
2020-08-26 07:14
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刘胜春

  (1)(x-y)(x+y)(x²+y²)=(x²-y²)(x²+y²)=x⁴-y⁴(2)(2x-3)²(2x+3)(2x-3)=(2x+3)(2x-3)(2x-3)²=(4x²-9)(2x-3)²=(4x²-9)(4x²+9-12x)=(4x...

2020-08-26 07:15:32

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