College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.5 - Factoring Polynomials - R.5 Assess Your Understanding: 20

Answer

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

Work Step by Step

$x^2-4$ To factor the difference of two squares, we can refer to the general form that any difference of two squares can be written as, that is: $(x^2-a^2)=(x+a)(x-a)$ Therefore, we must write the difference of two squares as the product of the sum of the square roots of the terms and the difference of the square roots of the terms. Therefore, the answer can be written as: $(x+2)(x-2)$
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