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Linh Thùy Ng

Giai PT 2x+1 +x\(\sqrt{x^2+2}\)+(x+1)\(\sqrt{x^2+2x+3}\)= 0

 

 

tth_new
28 tháng 5 2017 lúc 8:43

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Input: 2 x + 1 + x sqrt(x)^2 + 2 + (x + 1) sqrt(x)^2 + 2 x + 3 = 0

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   Result:x^2 + (x + 1) x + 4 x + 6 = 0   Plot: 

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   Alternate forms:x (2 x + 5) + 6 = 0

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  2 x^2 + 5 x + 6 = 0

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  -16/23 (x + 5/4)^2 = 1   Complex solutions:Approximate formsStep-by-step solutionx = -1/4 i (sqrt(23) - 5 i)

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  x = 1/4 i (sqrt(23) + 5 i)   Roots in the complex plane: