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: 102

Answer

$(2x - 1)(x + 4)$

Work Step by Step

Separate the middle term into two separate terms that can be factored with the outer terms: $2x^2 + 7x - 4$ $2x^2 + 8x - x - 4$ $2x(x + 4) -1(x + 4)$ $(2x - 1)(x + 4)$
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