Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Test: 22

Answer

$3x^{2}+16x-35$

Work Step by Step

$(x+7)(3x-5)$ FOIL --> First, Outer, Inner, Last Multiply the first numbers together: $x \times 3x = 3x^{2}$ Multiply the outer numbers together: $x \times -5 = -5x$ Multiply the inner numbers together: $7 \times 3x = 21x$ Multiply the last numbers together: $7 \times -5 = -35$ Add together and simplify: $3x^{2}+21x-5x-35$ $3x^{2}+16x-35$
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