Tamil Nadu Board Solutions for Chapter: Algebra, Exercise 7: Exercise 3.1

If $l=4p{q}^2, b=-3p^{2}q, h=2p^3{q}^3$ then, find the value of $l\times b\times h$.

Expand

$3mn\left(m^3{n}^3-5m^{2}n+7m{n}^2\right)$

Expand

$x^2(x+y+z)+y^2(x+y+z)+z^2(x-y-z)$

Find the product of

$(2x+3)(2x-4)$

Find the product of

$\left(y^2-4\right)\left(2y^2+3y\right)$

Find the product of

$\left(m^2-n\right)\left(5m^2{n}^2-n^2\right)$

Find the product of

$3(x-5)\times 2(x-1)$

A car moves at a uniform speed of $(x+30) \mathrm{km}/\mathrm{hr}$. Find the distance covered by the car in $\left(y+2\right)$ hours.