Answer
$12x^3+4x^2+12x-14$; Degree 3
Work Step by Step
$$(17x^3-5x^2+4x-3)-(5x^3-9x^2-8x+11)$$ $$=(17x^3-5x^3)+(-5x^2-(-9x^2))+(4x-(-8x))+(-3-11)$$ $$=12x^3+(-5x^2+9x^2)+(4x+8x)-14$$ $$=12x^3+4x^2+12x-14$$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.4 - Page 61: 11
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