#### Answer

4$x^{2}$ + 8y + 6

#### Work Step by Step

3x + 7y + 4$x^{2}$ - 3x + 7 + y - 1
= 4$x^{2}$ + 3x - 3x + 7y + y + 7 - 1
= 4$x^{2}$ + 8y + 6

Published by
Pearson

ISBN 10:
0321785045

ISBN 13:
978-0-32178-504-6

4$x^{2}$ + 8y + 6

3x + 7y + 4$x^{2}$ - 3x + 7 + y - 1
= 4$x^{2}$ + 3x - 3x + 7y + y + 7 - 1
= 4$x^{2}$ + 8y + 6

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