Question

упростите выражение
$2c - \frac{ {2c}^{2} - 18 } {c + 3}$
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Answer 1

$\displaystyle\bf\\2c-\frac{2c^{2} -18}{c+3} =2c-\frac{2(c^{2}-9) }{c+3} =2c-\frac{2(c+3)(c-3)}{c+3}=\\\\\\=2c-2(c-3)=2c-2c+6=6$

Answer 2

щвлвтвившвлвьвьвбыбвю