tiwarisantosh0p3rw03
\begin{lgathered}a - b - 4( {a}^{2} - {b}^{2} ) \\ a - b - 4(a - b)(a + b) \\ (a - b) \times ( - 4(a + b) + 1) \\ (a - b) \times ( - 4a - 4b + 1)\end{lgathered}a−b−4(a2−b2)a−b−4(a−b)(a+b)(a−b)×(−4(a+b)+1)(a−b)×(−4a−4b+1)
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