Express the equation `lx^(2)+mx+n=0` in a perfect square form.

Express the equation cx^(2)+ax+b=0,cne0 in the form of a perfect square.

What is sqrt(n) if n is not a perfect square number?

If the roots of the equation lx^(2) +mx +m=0 are in the ratio p:q, then

If the quadratic expression x^(2) + (a-4)x + (a+4) is a perfect square, then a = "______" .

If alpha,beta are roots of the equation lx^(2) + mx + n = 0,then the equation whose roots are alpha^(3) beta and alpha beta^(3) ,is

If roots of the equation lx^(2)+mx-2=0 are real and reciprocal of each other,then

If one root of the equation lx^(2)+mx+n=0 is (9)/(2) equal to (l,m and n are positive integers) and (m)/(4n)=(l)/(m), then l+n is equal to

Express the equation px+qy+r=0 in the form of y=mx+c where m and c are constants.