Proof by Induction Q

[candid lagoon]

Hi, could I get a working out for this question? Thanks :))

[floral oriole]

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[alpine ruin]

Hint:
(r+1)^3-(r+1)=(r+1)(r+2)(r) and
1/4(r-1)(r)(r+1)(r+2)+(r+1)(r+2)(r)=(1/4(r-1)+1)(r)(r+1)(r+2)

[indigo depot]

he said induction

[alpine ruin]

Okay?

The hint is for the "inductive step"

[stiff basin]

Aight

So for induction, you need 2 things

1. Base case
2. Assume the statement is true for some k, prove it is true for k + 1

@candid lagoon

[candid lagoon]

.close

[simple herald]

Unable to parse the channel name

[candid lagoon]

Yep I understood it now that I substituted my induction hypothesis in there. Thanks

.close

[simple herald]

Unable to parse the channel name

[alpine ruin]

+close?

[fathom parcel]

yea its +close im pretty sure

[dusk tiger]

+close