Question

calcule:


c)


$( \frac{4}{5} a {}^{3} ).( \frac{3}{2} a {}^{1} b) =$



me ajudem!!​

Answer 1

Resposta:

$\frac{6a^4b}{5}$

Explicação passo a passo:

$\left(\frac{4}{5}a^3\right)\left(\frac{3}{2}a^1b\right)$

$=\frac{4}{5}\cdot \frac{3}{2}a^{3+1}b$

$=\frac{4}{5}\cdot \frac{3}{2}a^4b$

$=\frac{4\cdot \:3a^4b}{5\cdot \:2}$

$=\frac{12a^4b}{10}$

$=\frac{6a^4b}{5}$