спростіть дріб: \frac{2a {}^{2} + 5a - 3 }{a {}^{2} - 9 } ​

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спростіть дріб:
\frac{2a {}^{2} + 5a - 3 }{a {}^{2} - 9 }
​

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Ximena 1 год 2021-08-09T08:16:28+00:00 1 Answers 0 views 0

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  1. Amaya
    0
    2021-08-09T08:18:23+00:00
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    2a²+5a-3/a²-9 = 2a + (a-3)-(a+3)/(a-3)(a+3) = (a+3)(2a-1)/(a-3)(a+3)=2a–1/a–3

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