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Extreme polynomial

Algebra Level 2

$\large { \sqrt { 3{ { x }^{ 2 } }+6x+7 } +\sqrt { 5{ x }^{ 2 }+10x+14 } =4-2x-{ x }^{ 2 } \\ x = \ ? }$

-1 0 No solution exist

x\in (-1,1)

1

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by Kandarp Singh

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