Help with questions please (1 Viewer)

Blacklisted

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I needa know how to start and where to continue. Like grouping which sets
 
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khorne

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so sqrt(6+sqrt (6+sqrt 6....))

Well, you can do it a simple way: like

x = sqrt(6+sqrt (6+sqrt 6....))
x^2 = 6 + sqrt(6+sqrt (6+sqrt 6....))
x^2 - x = 6
x^2-x-6 = 0
(x-3)(x+2) = 0
therefore x tends towards 3
 

Blacklisted

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I tried factorising, I've spent a few hours and still have to start from scratch
 

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