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Jul
9
accepted I want a clear explanation for the Principle of Strong Mathematical Induction
Apr
30
revised What does this question mean?
edited body
Apr
30
accepted How to reach $k\cdot 2^{k+2}$ from $(2k)\cdot 2^{k+1}$?
Apr
30
accepted How do we simplify this with multiplication?
Apr
30
asked I want a clear explanation for the Principle of Strong Mathematical Induction
Apr
29
comment How to reach $k\cdot 2^{k+2}$ from $(2k)\cdot 2^{k+1}$?
@BrianM.Scott: that's it!! I was thinking how the k goes out. It is the associative law!! Thank you all.
Apr
29
asked How to reach $k\cdot 2^{k+2}$ from $(2k)\cdot 2^{k+1}$?
Apr
3
asked How to convert $(k+1)!\times(k+2)−1 $ to $(k+2)!−1$?
Apr
2
accepted How to convert algebraic equation with the factorial sign?
Apr
2
comment How to convert algebraic equation with the factorial sign?
From where this (k+1)+1 came from in the first step?
Apr
2
asked How to convert algebraic equation with the factorial sign?
Apr
2
accepted How to convert this algebraic equation?
Apr
2
comment How to convert this algebraic equation?
I am doing what are you saying, I am working by myself with KhanAcademy and their Algebra videos :)
Apr
2
awarded  Supporter
Apr
2
comment How to convert this algebraic equation?
I am not kidding you, I am really lost when it comes to algebra!!
Apr
2
awarded  Commentator
Apr
2
comment How to convert this algebraic equation?
thank you. Also why 2k? could you please type it as you typed this: $(ac+bc=(a+b)c)$
Apr
2
comment How to convert this algebraic equation?
Why this step: $(k-1)2^{k+1} + (k+1)2^{k+1} = \Bigl( (k-1)+k+1)\Bigr)2^{k+1}$
Apr
2
comment How to convert this algebraic equation?
@bgins: thats it!!
Apr
2
asked How to convert this algebraic equation?