2/5(X-1)X/2-2

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Solution for 2/5(X-1)X/2-2 equation: 


X in (-oo:+oo)

(2/5)*(X-1) > X/2-2 // - X/2-2

(2/5)*(X-1)-(X/2)+2 > 0

2/5*(X-1)-X/2+2 > 0

(2/5*2*(X-1))/2-X/2+(2^2)/2 > 0

2/5*2*(X-1)-X+4 > 0

4-1/5*X-4/5 > 0

16/5-1/5*X > 0

(16/5-1/5*X)/2 > 0

(16/5-1/5*X)/2 > 0 // * 2^2

2*(16/5-1/5*X) > 0

( 16/5-1/5*X )

16/5-1/5*X > 0 // - 16/5

-1/5*X > -16/5 // : -1/5

X < -16/5/(-1/5)

X < 16

( 2 )

2 > 0

X należy do R

	(-oo:16)	(16:+oo)
16/5-1/5*X	+	-
2	+	+


X in (-oo:16)

(-oo:16)

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