Question

calcule
$(\frac{5}{14} a^{2} b^{3} ) . (7 a^{5} )$

Answer 1

$(\frac{5}{14}a^2b^3).(7a^5) \\ \\ = \frac{5.7}{14}a^{2+5}b^3= \\ \\ \frac{35}{14}a^7b^3= \\ \\ \frac{5}{2}a^7b^3$