Question

if a*b= a- (a*b) -b, then (-2)*(-7) is equal to​

Answer 1

Answer:

-9

Step-by-step explanation:

a*b=a-(a*b)-b

(-2)*(-7) here a=-2,b=-7

= (-2)-(-2*-7)-(-7)

= (-2)-(14)+7

= -2-14+7

= -16+7

= -9