Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.3 - Algebraic Expressions - 1.3 Exercises: 99

Answer

$(x - 4)(x + 2)$

Work Step by Step

Since there is no coefficient on the first term, you just find two factors of the third term, in this case -4 and 2, that add to the coefficient of the middle term, -2. Each of these is then inserted into a binomial expression with x as the other term, giving $(x - 4)(x + 2)$
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