Question 133101
5X^2=15
5X^2-15=0
5(X^2-3)=0
X^2-3=0
X^2=3
X=SQRT3
X=+/-1.732 ANSWER
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F(X)=5X^2-15
{{{ graph( 300, 200, -6, 5, -20, 10, 5x^2 -15) }}} (graph 300x200 pixels, x from -6 to 5, y from -20 to 10, 5x^2 -15). 
X INTERCEPTS ARE: (1.732,0)(-1.732,0)