2(x-15)x/2

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Solution for 2(x-15)x/2 equation: 


x in (-oo:+oo)

2*(x-15) > x/2 // - x/2

2*(x-15)-(x/2) > 0

2*(x-15)-x/2 > 0

(2^2*(x-15))/2-x/2 > 0

2^2*(x-15)-x > 0

3*x-60 > 0

(3*x-60)/2 > 0

(3*x-60)/2 > 0 // * 2^2

2*(3*x-60) > 0

( 2 )

2 > 0

x należy do R

( 3*x-60 )

3*x-60 > 0 // + 60

3*x > 60 // : 3

x > 60/3

x > 20

	(-oo:20)	(20:+oo)
2	+	+
3*x-60	-	+


x in (20:+oo)

(20:+oo)

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