Question

If - is an operation such that for any two integers a and b, a*b = a-(-b)+(-3), find the
value of
(-4)*(-5)
b)
(-5) * (-2)​

Answer 1

Answer:

a*b=a-(-b)+(-3)

(a).

(-4)*(-5)=-4-(-5)+3

=-4+5+3

=-4+8

=4

(b).

(-5)*(-2)=-5-(-2)+3

=-5+2+3

=-5+5

=0