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1961 AHSME Problems/Problem 5

Revision as of 16:02, 1 October 2009 by Smartguy (talk | contribs) (Created page with 'Let <math>S=(x-1)^4+4(x-1)^3+6(x-1)^2+4(x-1)+1</math>. Then S equals: (A) <math>(x-2)^4</math> (B) <math>(x-1)^4</math> (C) <math>x^4</math> (D) <math>(x+1)^4</math> (E) <math>x…')
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Let $S=(x-1)^4+4(x-1)^3+6(x-1)^2+4(x-1)+1$. Then S equals:

(A) $(x-2)^4$ (B) $(x-1)^4$ (C) $x^4$ (D) $(x+1)^4$ (E) $x^4+1$

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