A new operation is defined, which requires a * b = (a + b) + [a + (- b)] to find the value of 3 * (- 5)

A new operation is defined, which requires a * b = (a + b) + [a + (- b)] to find the value of 3 * (- 5)

Known a * b = (a + b) + [a + (- b)]
3*(-5)=(3-5)+{3+5}=6
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