Question

If an operation * is defined as a*b = a +b-a into b, find 3*(-5)

Answer 1

Answer: 13

Step-by-step explanation:

consider a=3;b= -5

substitute value in the place of a and b

a*b = a +b-ab

3*(-5)= 3 +(-5)-3*(-5)

        = -2 - 3*(-5)

       = -2 +15

3*(-5) = 13