0.0625a^4－b^4 －1+s^4
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0.0625a^4－b^4
=(0.25a)^4-b^4
=[(0.25a)^2+b^2][(0.25a)^2-b^2]
=[(0.25a)^2+b^2](0.25+b)(0.25-b)
-1+s^4
=s^4-1
=(s^2+1)(s^2-1)
=(s^2+1)(s+1)(s-1)
======以下答案可供参考======
供参考答案1:
0.0625a^4－b^4
=(0.25a^2+b^2)(0.25a^2-b^2)
=(0.25a^2+b^2)(0.5a-b)(0.5a+b)
－1+s^4
=-(1-s^2)(1+s^2)=-(1-s)(1+s)(1+s^2)