Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.4 - Polynomials - Exercise Set - Page 56: 14

Answer

$6x^3+10x^2+11x-8 $ Degree: 3

Work Step by Step

$ (8x^2 + 7x - 5) - (3x^2 - 4x) - (-6x^3 - 5x^2 + 3) =8x^2 + 7x - 5-3x^2+4x+6x^3+5x^2-3=6x^3+10x^2+11x-8 $ For monomials with the same power, you can add their coefficients to combine them. The degree of a polynomial is the highest power.
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