Simplify:
( + + ) ( − + )+( + − )( − + + )− 4
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Answer:
(+ +)(- +)+(+ -)(- + +)-4.
(+)(-)+(-)(- +)-4. (Because +×+=+, -×+×- & +×-=-).
(-)+(-)(-)-4. (Because +×-=- & -×+=-).
(-)+(+)-4. (Because -×+-=+).
-(+)-4. (Because -×+=-).
(-)-4. (Because -×+=-).
+4 (or) 4. (Because -×-=+).
I think this is your answer.
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