rectangle had an area of x2+13x+36 square meters the length of x+9 meters. What expression represents the width of the rectangle?

rectangle had an area of x2+13x+36 square meters the length of x+9 meters. What expression represents the width of the rectangle?

x²−14x+49=0

I just need to know how to use the quadratic formula so I can begin to understand it in a better and easier way.

Factoring quadratics

what is the factoring quadratic of 5x^2+5x-10

This quadratic seems impossible! We've tried almost every factor within 1-20 and none fit! How do I factor -16t^2+60t+5?! So aggravating! We just need it FACTORED, not SOLVED...

Solve: x^3 +2x^2 +x > or = 0 Step by step assistance would be amazing!

I'm having difficulty understanding this concept and would appreciate help