Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 5 Polynomials and Polynomial Functions - Chapter Test - Page 407: 8

Answer

$$ 3x^3 +2x^2 -11x+4$$

Work Step by Step

In order to solve this problem, it is necessary to combine like terms. Recall, like terms must (1) be raised to the same power and (2) consist of the same variable (i.e. x and y are not like terms). It is also important to note that numbers are all like terms with each other when not multiplied by anything. Doing this, we find: $$(2+1)x^3 + (5-3)x^2 + (-7-4)x +4 \\ 3x^3 +2x^2 -11x+4$$
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