#### Answer

9x$^4$

#### Work Step by Step

Simplify the expression by combining like terms.
8x$^4$+x$^4$=(8+1)x$^4$=9x$^4$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

9x$^4$

Simplify the expression by combining like terms.
8x$^4$+x$^4$=(8+1)x$^4$=9x$^4$

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