(-a+c)(-a-c) what is the answer
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(-a + c) (-a -c)
Ans = (-a*-a) + (-a*-c) + (c*-a) + (c*-c) ( i just multiplied both the terms.....)
= a^2 + ca - ca - c^2
= a^2 - c^2 ( i cancelled both the "ca's")
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