Question

ajuda pfv gente...Raaapido

Answer 1

a) $8 \times 64$

$=2^3 \times 2^6\\\\ =2^{3+6}\\\\ =2^{9}\\\\ =\underbrace{2\times 2\times \ldots \times 2}_{\text{9 fatores}}\\\\ =512$


b) $81 \times 243$

$=3^4 \times 3^5\\\\ =3^{4+5}\\\\ =3^{9}\\\\ =\underbrace{3 \times 3\times \ldots\times 3}_{\text{9 fatores}}\\\\ =19\,683$


c) $3^m\cdot 3^n$

$=3^{m+n}$