If a#b = ab – b + b^2, then 3#4 =	Choices.
A) 2 B) 8 C) 15 D) 24 E) 35

Rationale: "solution - simply substitute 3 and 4 in equation in the place of a and b respectively . 3 # 4 = 3 * 4 - 4 + 4 ^ 2 = 12 - 4 + 16 = 24 . ans d"
Answer: D