Using the column method evaluate the following product:

$(2pq-3p^2+5)\times (p^3-q^2)$

Using the column method evaluate the following product:

$(2x^2-3x+4)\times (x^3-x^2+5x)$

Simplify the following:

$9a^2+7a(3a-2b)+5ab$

Simplify the following:

$(2x+y)(4x+3y)-6x(x+y)$

Simplify the following:

$p^{2}q(p-q^2)+p{q}^2(4pq-2p^2)-p^{3}q(1-2q)$

Simplify the following:

$(2l+3)(l^2-5l)-(l-2)(3l^2+4l)$

Simplify the following:

$(a+2)(a^2-2a+4)-(a-2)(a^2+2a+4)$

Simplify the following:

$(x^2-2x+3)(3x^2+5x-7)-(3x^2-2x+5)(2x+5)$

Find the following product and also find its value for $p=1,q=-1,r=2$.

$(p^2-8p+4)\times (5p+2)$