2022
Mathematics
JAMB
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 Answer: 223
Explanation
3 * 5 = 3 - 5 + (3 x 5)2 -2 + (15)2 -2 + 225 = 223
3 * 5 = 3 - 5 + (3 x 5)2 -2 + (15)2 -2 + 225 = 223THIS WEEK's
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