Simplify
`((p^(2)-10p+21)/(p-7)times(p^(2)+p-12)/((p-3)^(2)))`

Simplify ((1)/(p)+(1)/(q+r))/((1)/(p)-(1)/(q+r))times[1+(q^(2)+r^(2)-p^(2))/(2pr)]

Simplify (""^(n)P_(4))/(""^(n-1)P_(3))

Reduce each of the following retional expression to its lowest table form . (p^(2)-3p-40)/(2p^(3)-24p^(2)+64p)

Find the degree of the following polynomials. 2sqrt(5) p^(4) - ( 8p^(3))/( sqrt(3)) + ( 2p^(2))/( 7)