gesc693
gesc693
02-05-2015
Mathematics
contestada
find the sum to the equation of:
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Panoyin
Panoyin
03-05-2015
[tex]\frac{a}{a^{2} - 4a + 4} + \frac{7}{a^{2} + 2a - 8}[/tex] = [tex]\frac{a(a^{2} + 2a - 8)}{(a^{2} - 4a + 4)(a^{2} + 2a - 8)} + \frac{7(a^{2} - 4a + 4)}{(a^{2} - 4a + 4)(a^{2} + 2a - 8)}[/tex] = [tex]\frac{a^{3} + 2a^{2} - 8a}{a^{4} - 2a^{3} - 12a^{2} + 40a - 32} + \frac{7a^{2} - 28a + 28}{a^{4} - 2a^{3} - 12a^{2} + 40a - 32}[/tex] = [tex]\frac{a^{3} + 9a^{2} - 36a + 28}{a^{4} - 2a^{3} - 12a^{2} + 40a - 32} [/tex]
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