Question

Reduce:

$\bold{ \pink { \dfrac{(x + 9 {)}^{2} - (x + 13)(x +5) }{(x + 10)(x + 9) - (x + 16)(x + 3)} }}$
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Answer 1

Respuesta:

El resultado es 8/21

Explicación paso a paso:

${ { \dfrac{(x + 9 {)}^{2} - (x + 13)(x +5) }{(x + 10)(x + 9) - (x + 16)(x + 3)} }} \\ \\ \frac{ {x}^{2} + 18x + 81 - ( {x}^{2} + 18x + 65) }{ {x}^{2} + 19x + 90 - ( {x}^{2} + 19x + 48) } \\ \\ \frac{ {x}^{2} + 18x + 81 - {x}^{2} - 18x - 65 }{ {x}^{2} + 19x + 90 - {x}^{2} - 19x - 48} \\ \\ \frac{81 - 65}{90 - 48} \\ \\ \frac{16}{42} \\ \\ \frac{8}{21}$

MrSnow