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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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