1/2(x-2)^2-20

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Solution for 1/2(x-2)^2-20 equation: 


x in (-oo:+oo)

(1/2)*(x-2)^2-2 > 0

1/2*(x-2)^2-2 > 0

1/2*(x-2)^2-2 > 0

1/2*x^2-2*x > 0

1/2*x^2-2*x = 0

x*(1/2*x-2) = 0

1/2*x-2 = 0 // + 2

1/2*x = 2 // : 1/2

x = 2/1/2

x = 4

x*(x-4) = 0

x*(x-4) > 0

( x-4 )

x-4 > 0 // + 4

x > 4

( x )

x+0 > 0 // - 0

x > 0

	(-oo:0)	(0:4)	(4:+oo)
x-4	-	-	+
x	-	+	+


x in (-oo:0) U (4:+oo)

(-oo:0) U (4:+oo)

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