Question

How do you factor a trinomial in the form of ax^2+bx+c ?

Answer 1

by using a quadratic equation

Answer 2

any other way?

Answer 3

Step 1 : find two factors of "a*c" such that their sum is equal to "b"
Step 2 : split bx in terms of above factors
Step 3 : factor by grouping

Answer 4

We have to find its roots using the quadratic equation.
Then, if the roots are x1 and x2 we factor this way:
a(x-x1)(x-x2)
Maybe this is useful:
http://tutorial.math.lamar.edu/Classes/Alg/SolveQuadraticEqnsII.aspx
Take a look at the 3th example.

Answer 5

I hope it helps.

Answer 6

thank you!

Answer 7

you are welcome! ;)