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steposvetlana [31]
4 years ago
9

Combine as indicated by the signs. 4/ y^2-9 + 5/y+3

Mathematics
1 answer:
natka813 [3]4 years ago
8 0
\frac{4}{y^{2}-9 } + \frac{5}{y+3} = \frac{4}{(y-3)(y+3) } + \frac{5}{y+3}= \frac{4}{(y-3)(y+3) } + \frac{5(y-3)}{(y-3)(y+3)}=
\\ \\=\frac{4}{(y-3)(y+3) } + \frac{5y-15}{(y-3)(y+3)}= \frac{5y-11}{(y-3)(y+3)}=\frac{5y-11}{y^{2}-9}

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Chairs                  20X           1X                 2X                       =            $20X

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