Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 7 - Polynomial Equations and Factoring - 7.5 - Factoring x 2 + bx + c - Exercises - Page 389: 6

Answer

$(s+5)(s+6)$.

Work Step by Step

The given polynomial is $=s^2+11s+30$ Standard form is $x^2+bx+c$. We have $b=11$ and $c=30$. $b$ and $c$ is positive. Factor pair of $30$, whose sum is $11$:- $5,6$ The values of $p$ and $q$ are $5$ and $6$. Hence, the factor of the polynomial is $(s+p)(s+q)=(s+5)(s+6)$. Check:- $=(s+5)(s+6)$ $=s^2+6s+5s+30$ $=s^2+11s+30$ True.
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