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Scoateți factorii de sub radical

a)

[tex] \huge \sqrt[5]{ {100}^{2} \times {4}^{3} } [/tex]
b)

[tex] \huge \sqrt[3]{( - 3) {}^{7} } [/tex]
c)

[tex] \huge \sqrt[4]{( - 2) {}^{5} \times ( - 3) {}^{7} } [/tex]