Question

Sendo a = 2.⁷ 3.⁴ .5⁸ e b = 2⁸ .3⁵ .5⁷ . Calcule:
a) a.b =
b) a÷b=
Respondam por favor!!

Answer 1

$a = {2}^{7} \times {3}^{4} \times {5}^{8} \\ a = 128 \times 81 \times 390625 \\ a = 4050000000$
$b = {2}^{8} \\ b = 256$
a)
$a \times b = 4050000000 \times 256 \\ a \times b = 1036800000000$
b)
$a \div b = 4050000000 \div 256 \\ a \div b = 15820312.5$