化简二次根式:根号下45/[(m+n)^3]ab根号下(1/a^4+1/b^4)根号下(x^3+5x^2)(x>0)

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化简二次根式:根号下45/[(m+n)^3]ab根号下(1/a^4+1/b^4)根号下(x^3+5x^2)(x>0)
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化简二次根式:根号下45/[(m+n)^3]ab根号下(1/a^4+1/b^4)根号下(x^3+5x^2)(x>0)
化简二次根式:根号下45/[(m+n)^3]
ab根号下(1/a^4+1/b^4)
根号下(x^3+5x^2)(x>0)

化简二次根式:根号下45/[(m+n)^3]ab根号下(1/a^4+1/b^4)根号下(x^3+5x^2)(x>0)
ab根号下(1/a^4+1/b^4)
=ab/(ab)^2√(a^4+b^4)
=1/ab√(a^4+b^4)
根号下(x^3+5x^2)(x>0)
=√x^2(x+5)
=x√(x+5)