Multiplying a Monomial by a Monomial

If the product of $\left(4p^2+5p+7\right)\times 3p$ is $k{p}^3+15p^2+21p$

If the product of $a^2\left(2ab-5c\right)$ is $2a^{3}b-k{a}^{2}c$. Find the value of $k$

If the product of $2x\left(3x+5xy\right)$ is $6x^2+k{x}^{2}y$ then find the value of $k$.

Obtain the product of:
$\mathrm{m}, -\mathrm{mn}, \mathrm{mnp}$
 

Obtain the product of:
$\mathrm{a}, 2\mathrm{b}, 3\mathrm{c}, 6\mathrm{abc}$
 

Obtain the product of:
$\mathrm{x}\mathrm{y},\mathrm{}\mathrm{y}\mathrm{z},\mathrm{}\mathrm{z}\mathrm{x}$
 

Obtain the volume of rectangular box with the following length, breadth and height respectively.

$\mathrm{a}, 2\mathrm{b}, 3\mathrm{c}$

Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
$\mathrm{xy}, 2{\mathrm{x}}^2\mathrm{y}, 2{\mathrm{xy}}^2$
 

Obtain the volume of rectangular boxes with the following length, breadth and height respectively.
$2\mathrm{p}, 4\mathrm{q}, 8\mathrm{r}$
 

The product of $2, 4\mathrm{y}, 8{\mathrm{y}}^2, 16{\mathrm{y}}^3$ is $1024y^k$. Find $k$.
 

The product of $\mathrm{a}, -{\mathrm{a}}^2, {\mathrm{a}}^3$ is $a^k$. Find $k$.
 

Find the area of rectangle with the following pair of monomials as their length and breadth respectively.
$3\mathrm{mn}$ and $4\mathrm{np}$ 

Find the area of rectangle with the following pairs of monomials as their length and breadth respectively.
$4\mathrm{x} \mathrm{and} 3{\mathrm{x}}^2$

Find the area of rectangle with the following pairs of monomials as their length and breadth respectively.
$20{\mathrm{x}}^2 \mathrm{and} 5{\mathrm{y}}^2$

Find the area of rectangle with the following pairs of monomials as their lengths and breadths respectively.
$10\mathrm{m}$and $5\mathrm{n}$

Find the product of $4p$ and $0$.

Find the product of the following pairs of monomials.

$4{\mathrm{p}}^3 \mathrm{and} -3\mathrm{p}$

Find the product of the following pairs of monomials.

$-4\mathrm{p} \mathrm{and} 7\mathrm{pq}$

Find the product of the following pairs of monomials.

$-4\mathrm{p} \mathrm{and} 7\mathrm{p}$

Obtain the volume of rectangular box with the following length, breadth and height respectively.

$5\mathrm{a}, 3{\mathrm{a}}^2, 7{\mathrm{a}}^4$