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Question Number 174655 by AgniMath last updated on 06/Aug/22

Factorize a^3  − 16a − 3

$$\mathrm{Factorize}\:{a}^{\mathrm{3}} \:−\:\mathrm{16}{a}\:−\:\mathrm{3} \\ $$

Answered by MJS_new last updated on 07/Aug/22

LOL!  a^3 −16a−3=  =(a+((8(√3))/3)cos ((π/6)+(1/3)arcsin ((9(√3))/(128))))(a+((8(√3))/3)sin ((1/3)arcsin ((9(√3))/(128))))(a−((8(√3))/3)sin ((π/3)+(1/3)arcsin ((9(√3))/(128))))  I hope you′re satisfied!

$$\mathrm{LOL}! \\ $$$${a}^{\mathrm{3}} −\mathrm{16}{a}−\mathrm{3}= \\ $$$$=\left({a}+\frac{\mathrm{8}\sqrt{\mathrm{3}}}{\mathrm{3}}\mathrm{cos}\:\left(\frac{\pi}{\mathrm{6}}+\frac{\mathrm{1}}{\mathrm{3}}\mathrm{arcsin}\:\frac{\mathrm{9}\sqrt{\mathrm{3}}}{\mathrm{128}}\right)\right)\left({a}+\frac{\mathrm{8}\sqrt{\mathrm{3}}}{\mathrm{3}}\mathrm{sin}\:\left(\frac{\mathrm{1}}{\mathrm{3}}\mathrm{arcsin}\:\frac{\mathrm{9}\sqrt{\mathrm{3}}}{\mathrm{128}}\right)\right)\left({a}−\frac{\mathrm{8}\sqrt{\mathrm{3}}}{\mathrm{3}}\mathrm{sin}\:\left(\frac{\pi}{\mathrm{3}}+\frac{\mathrm{1}}{\mathrm{3}}\mathrm{arcsin}\:\frac{\mathrm{9}\sqrt{\mathrm{3}}}{\mathrm{128}}\right)\right) \\ $$$$\mathrm{I}\:\mathrm{hope}\:\mathrm{you}'\mathrm{re}\:\mathrm{satisfied}! \\ $$

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