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bixtya [17]
3 years ago
5

Which expression is equivalent to 2a +1 / 10a -5 divided by 10a / 4a^2 -1?

Mathematics
1 answer:
murzikaleks [220]3 years ago
4 0

<em>answer =  \frac{ {(2a + 1)}^{2} }{50a}  \\ solution \\  \frac{2a + 1}{10a - 5}  \div  \frac{10a}{ {4a}^{2} - 1 }   \\  =  \frac{2a + 1}{10a - 5}  \times  \frac{ {4a}^{2}  - 1}{10a}  \\  =  \frac{2a + 1}{5(2a - 1)}  \times \frac{ {4a}^{2}  -  {(1)}^{2} } {10a}  \\  =  \frac{2a + 1}{5(2a - 1)}  \times  \frac{(2a - 1)(2a + 1)}{10a}  \\  =  \frac{ {(2a + 1)}^{2} }{50a}  \\ hope \: it \: helps</em>

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