Differences of squares

What will be the answer if (2986759948578869038956)2(2986759948578869038955)2(2986759948578869038956)^{2}-(2986759948578869038955)^{2}

#NumberTheory

Note by Fahad Shihab
7 years, 7 months ago

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2 votes

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Comments

2986759948578869038956229867599485788690389552=2986759948578869038956+2986759948578869038955=5973519897157738077911\begin{aligned}2986759948578869038956^2-2986759948578869038955^2&=&2986759948578869038956+2986759948578869038955\\&=&5973519897157738077911\end{aligned} by difference of squares.

Ryan Soedjak - 7 years, 7 months ago

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that's wrong u idiot then u multiply by (a-b)

William G. - 5 years, 7 months ago

jk

William G. - 5 years, 7 months ago

Consider the first term xx and the 2nd term as x1x-1. Therefore,x2(x1)2=2x1=x^{2}-(x-1)^2=2x-1=22 x (the first term)1-1 is the reqd. result.

Bhargav Das - 7 years, 7 months ago
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