Algebra: A Combined Approach (4th Edition)

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

Chapter 5 - Section 5.5 - Multiplying Polynomials - Exercise Set: 65

Answer

$x^{2}-\frac{2}{7}x-\frac{3}{49}$

Work Step by Step

$(x+\frac{1}{7})(x-\frac{3}{7})=x(x-\frac{3}{7})+\frac{1}{7}(x-\frac{3}{7})=(x)(x)+(x)(-\frac{3}{7})+(\frac{1}{7})(x)+(\frac{1}{7})(-\frac{3}{7})=x^{2}+\frac{1}{7}x-\frac{3}{7}x-\frac{3}{49}=x^{2}-\frac{2}{7}x-\frac{3}{49}$
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