SOLUTION: i need to prove that {{{4k=(2k)^2-2k}}} by mathematical induction. thanks in advance to all.

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Question 995400: i need to prove that 4k=%282k%29%5E2-2k by mathematical induction.
thanks in advance to all.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
i need to prove that 4k=%282k%29%5E2-2k by mathematical induction.
4k=%282k%29%5E2-2k
At k = 1, 4 =? 2^2 - 2
4 <> 2
It doesn't