用乘法公式分解因式相关题目.1.0.01x^2y^4=( )^42.4(3x+2y)^2-9(x-y)^23.-1/2a^2+2b^2

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用乘法公式分解因式相关题目.1.0.01x^2y^4=( )^42.4(3x+2y)^2-9(x-y)^23.-1/2a^2+2b^2
用乘法公式分解因式相关题目.
1.0.01x^2y^4=( )^4
2.4(3x+2y)^2-9(x-y)^2
3.-1/2a^2+2b^2

用乘法公式分解因式相关题目.1.0.01x^2y^4=( )^42.4(3x+2y)^2-9(x-y)^23.-1/2a^2+2b^2
0.01x^2y^4=( √ (0.1x)*y )^4=(0.1xy^2)^2
4(3x+2y)^2-9(x-y)^2
=[2(3x+2y)+3(x-y)][2(3x+2y)-3(x-y)]
=(9x+y)(3x+7y)
-1/2a^2+2b^2
=-1/2(a^2-4b^2)
=-1/2(a+2b)(a-2b)