Question

arata ca 4la7este p.p
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Answer 1

Răspuns:

Explicație pas cu pas:

4^7 = (2^2)^7 = (2^7)^2 patrat perfect

Answer 2

 

$\displaystyle\bf\\Metoda~1: \\\\\boxed{\bf4^7 = \Big(2^2\Big)^7=2^{2\times7}=2^{7\times2}=\Big(2^7\Big)^2=p.p.}\\\\\\Metoda~2~fara~calcule. \\4~este~patrat~perfect.\\\textbf{Un patrat perfect ridicat la orice putere naturala}\\\textbf{este tot patrat perfect.}\\\\\implies~\boxed{\bf4^7=p.p.}$