Question

Упростите выражение пожалуйста очень надо

Answer 1

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Answer 2

$frac{8 {a}^{3} + 100a}{ {a}^{3} + 125 } - frac{4 {a}^{2} }{ {a}^{2} - 5a + 25 } = frac{8{a}^{3} + 100a - 4 {a}^{2} (a + 5)}{(a + 5)( {a}^{2} - 5a + 25)} = frac{ {8a}^{3} + 100a - 4 {a}^{3 } - 20 {a}^{2} }{(a + 5)( {a}^{2} - 5a + 25)} = frac{4 {a}^{3} - 20 {a}^{2} + 100a }{(a + 5)( {a}^{2} - 5a + 25) } = frac{4a( {a}^{2} - 5a + 25)}{(a + 5)( {?}^{2} - 5a + 25) } = frac{4a}{a + 5}$