Factorise-8x3-12x2-6x-1- nbsp-

#160; #160; #160; #160;8x3 #160;+ #160;12x2 #160;+ #160;6x #160;+ #160;1=8x3 #160;+ #160;1 #160;+ #160;12x2 #160;+ #160;6x=2x3 ...

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Factorise:8x3...

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Factorise:8x³+12x²+6x+1

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8 x^{3} + 12 x^{2} + 6 x + 1 = (A x + B)^{3}

A + B =

t a n^{- 1} [\frac{6 x - 8 x^{3}}{1 - 12 x^{2}}] - t a n^{- 1} [\frac{4 x}{1 - 4 x^{2}}] = t a n^{- 1} 2 x, | 2 x | < \frac{1}{\sqrt{3}}

Factorise: $12 x^{2} - 7 x + 1$

12 x^{2} - 7 x - 1

x : {tan}^{- 1} (x - 1) + {tan}^{- 1} x + {tan}^{- 1} (x + 1) = {tan}^{- 1} 3 x

{tan}^{- 1} (\frac{6 x - 8 x^{3}}{1 - 12 x^{2}}) - {tan}^{- 1} (\frac{4 x}{1 - 4 x^{2}}) = {tan}^{- 1} 2 x; | 2 x | < \frac{1}{\sqrt{3}}

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