Question 132085
2X^2=6 
X^2=6/2
X^2=3
X=SQRT3
X=+/-1.732 ANSWER. 
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F(X)=2X^2-6.
{{{ graph( 300, 200, -6, 5, -10, 10, 2x^2 -6) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 2x^2 -6). 
(1.732,0)(-1.732,0)