Binomial
posted by Keira .
Help me on this one :(
Express y= (73xx^2)/[((1x)^2)(2+x)] in partial fractions. Hence, prove that if x^3 and higher powers of x may be neglected, then y=(1/8)(28+30x+41x^2)
I did the first part of expressing it in partial fractions. (Since it's very difficult to type out fractions... i'll write it in terms of powers)
2(1x)^(1) + (1x)^(2) + (2+x)^(1)
So i did a binomial on each of the three terms (fractions) above, neglecting anything after power 2. And then i added the three binomial expressions of each of the fractions, and what i got was (5 + 3x + 5.5x^2 + ...) This is different from what im supposed to prove!! Where did i go wrong?????!
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