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: 11

Answer

$12x^3+4x^2+12x-14$ Degree: 3

Work Step by Step

$(17x^3 - 5x^2 + 4x - 3) - (5x^3 - 9x^2 - 8x + 11)= 17x^3 - 5x^2 + 4x - 3-5x^3 + 9x^2 +8x - 11=12x^3+4x^2+12x-14$ 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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