1. Explain in your own words how to reverse FOIL when factoring a polynomial of the form ax2 + bx + c when a = 1. Give an example with your explanation.
1. Explain in your own words how to reverse FOIL when factoring a polynomial of the form ax2 + bx + c when a = 1. Give an example with your explanation.
Thanks Alot
Since a=1 we have:
$\displaystyle x^2+bx+c$
Let the factors of be $\displaystyle r\cdot{s}=c$, then the coefficient of the linear term is given by the sum of $\displaystyle r$ and $\displaystyle s$, or $\displaystyle b=(r+s)$.