Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - R.3 Polynomials - R.3 Exercises: 88

Answer

$$3x^{4}-4x^{2}+5$$

Work Step by Step

Initial equation: $$(x^{4}-3x^{2}+2)-(-2x^{4}+x^{2}-3)$$ Start by distributing the negative to the second set of parenthesis that indicates subtraction: $$x^{4}-3x^{2}+2+2x^{4}-x^{2}+3$$ Finally, combine like terms to arrive at the final answer: $$3x^{4}-4x^{2}+5$$
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