Answer
y-4 , $y\ne-4$
Work Step by Step
Expression : $\frac{y^{2}-16}{y+4} = \frac{(y-4)(y+4)}{y+4}=y-4$
with y≠-4 as y=-4 would make the denominator in the original expression zero and division by 0 is not allowed.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Prerequisites - P.5 - Rational Expressions - Exercises - Page 48: 21
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