Let (*) be a binary operation on a natural number defined by a * b = a – b + (ab)\(^2\), then find 3 * 5
-
223
- 232
- 32
- -232
The correct answer is: A
Explanation
3 * 5 = 3 - 5 + (3 x 5)\(^2\)
-2 + (15)\(^2\)
-2 + 225
= 223
There is an explanation video available .