Question

A EXPRESSAO (R-P)ELEVADO A 2 -(R+P)ELEVADO A 2 E EQUIVALENTE A ;
-4RP
2R-P
RP
2RP
-RP/4

Answer 1

$(R-P)^2 - (R+P)^2 \\ \\ \\ R^2 - PR -PR + P^2 - R^2 + RP + RP + P^2 \\ \\ \\ R^2 - 2PR +P^2 - R^2 + 2RP + P^2 \\ \\ \\=> -4RP$

Resposta: -4RP