Question

(iv) (abc + 3) (abc-5)
5. Using the identity, (x + a)(x + b) = x2 + (a + b)x + ab, evaluate the following:
(i) 203 x 204
(ii) 8.2 x 8.7
(iii) 107 x 93​

Answer 1

(200+3)*(200+4)

40000+12

40012