Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 8 - Polynomials and Factoring - 8-5 Factoring x2+bx+c - Practice and Problem-Solving Exercises - Page 517: 61

Answer

C

Work Step by Step

$$x^2+x-42$$ $$=x^2+7x-6x-42$$ $$=x(x+7)-6(x+7)$$ $$(x-6)(x+7)$$
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