Without using a calculator, find the exact value of the expression:
4tan2(30∘)+6tan2(45∘)=\displaystyle {4}{{\tan}^{{2}}{\left({30}^{\circ}\right)}}+{6}{{\tan}^{{2}}{\left({45}^{\circ}\right)}}=4tan2(30∘)+6tan2(45∘)=
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