Đề bài

Tính: a) \({10^{10}}.\left( { - {{10}^4}} \right)\); b) \(\left( { - 2} \right).\left( { - 2} \right).\left( { - 2} \right).\left( { - 2} \right).\left( { - 2} \right) + {2^5}\); c) \(\left( { - 3} \right).\left( { - 3} \right).\left( { - 3} \right).\left( { - 3} \right) - {3^4}\)

Lời giải chi tiết

a) \({10^{10}}.\left( { - {{10}^4}} \right) =  - \left( {{{10}^{10}}{{.10}^4}} \right) =  - \left( {{{10}^{10 + 4}}} \right) =  - {10^{14}}\) b) \(\begin{array}{l}\left( { - 2} \right).\left( { - 2} \right).\left( { - 2} \right).\left( { - 2} \right).\left( { - 2} \right) + {2^5}\\ = (-2)^5 + {2^5}\\ =  - {2^5} + {2^5} = 0\end{array}\) c) \(\begin{array}{l}\left( { - 3} \right).\left( { - 3} \right).\left( { - 3} \right).\left( { - 3} \right) - {3^4}\\ = {(-3)^4} - {3^4} = {3^4} - {3^4} = 0\end{array}\)

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