Question

Question 83 (i)

Multiply the following :

$-7p{q}^2{r}^3,-13p^3{q}^{2}r$

Answer 1

We have, $-7p{q}^2{r}^{3}and-13p^3{q}^{2}r$
$\therefore (-7p{q}^2{r}^3)\times (-13p^3{q}^{2}r)=(-7)\times (-13)p^4{q}^4{r}^4=91p^4{q}^4{r}^4$