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3 years ago

7n^2+16n+15=2n^2+3 solve using Quadratic

Mathematics

1 answer:

Harrizon [31]3 years ago

3 0

Answer:

n=6/5 or n=-2

Step-by-step explanation:

7n^2+16n+15=2n^2+3

collect like terms

7n^2-2n^2 +16n=3-15

5n^2 + 16n= -12

5n^2 +16n + 12

(5n^2+10n)+(6n+12)

5n(n+2)+6(n+2)

(5n+6)(n+2)

n=6/5 or n=-2

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