Answer
$15y^2-27y+30$
Work Step by Step
Use distributive property.
$9(y^2-3y+4)-6(1-y^2)=9y^2-27y+36-6+6y^2$
Combine like terms.
$=15y^2-27y+30$
Hence, the single polynomial in standard form is $15y^2-27y+30$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.3 Polynomials - A.3 Assess Your Understanding - Page A30: 41
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