(a-b+c)(a+b-c)
Solucion
(a-b+c)(a+b-c) =
(a-[b -c] ).(a+[b-c] ) = a² - (b - c)² = a² - (b² -2bc + c²) = a² -b² +2bc - c² = a² -b² -c² + 2bc
Respuesta ::
(a-b+c)(a+b-c) = a² -b² -c² + 2bc
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Verified answer
Solucion
(a-b+c)(a+b-c) =
(a-[b -c] ).(a+[b-c] ) = a² - (b - c)² = a² - (b² -2bc + c²) = a² -b² +2bc - c² = a² -b² -c² + 2bc
Respuesta ::
(a-b+c)(a+b-c) = a² -b² -c² + 2bc