Book Maths Puzzle Algebra

Please tell me how to rearrange this:

-0.17955/r^2 = -0.17955/(r+0.25)^2

into the quadratic formula ax^2 + bx + c = 0

Thanks

Read Solution (Total 0)

Book Other Question

if a, b and c are the roots of x^3 - 2x^2 + x +3 = 0 evaluate:

a^3 + b^3 + c^3

and a^5 + b^5 + c^5

pls help..

many thanks The roots of the equation px²+qx+q=0 are in the ratio m: n.
Prove that √m/n+√n/m+√q/p=0