Let be a binary operation on a natural number d... - JAMB Mathematics 2022 Question
Let (*) be a binary operation on a natural number defined by a * b = a - b + (ab)\(^2\), then find 3 * 5
A
223
B
232
C
32
D
-232
correct option: a
3 * 5 = 3 - 5 + (3 x 5)\(^2\)
-2 + (15)\(^2\)
-2 + 225
= 223
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