Maharashtra State BoardSSC (English Medium) 8th Standard
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Simplify: a2+5a+6a2-a-12×a-4a2-4 - Mathematics

Sum

Simplify: `(a^2 + 5a + 6)/(a^2 - a - 12) xx (a - 4)/(a^2 - 4)`

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Solution

`(a^2 + 5a + 6)/(a^2 - a - 12) xx (a - 4)/(a^2 - 4)`

`= ((a + 3)(a + 2))/((a - 4)(a + 3)) xx (a - 4)/((a + 2)(a - 2))`

`= 1/(a - 2)`

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