Question

4. If a* b = a + b - 6, find
(0) - 10 * 15
(ii) 25 * 12
(iii) O * - -4
(iv) 18 * 0​

Answer 1

a* b = a + b - 6

a-a*b-b = -6

0=-6 (not possible)

(iv) 18 * 0