Math

QuestionSolve the inequality x12x>1|x-1|-2x>1.

Studdy Solution

STEP 1

Assumptions1. The problem is to solve the inequality x1>x|x-1|- > x. . The absolute value function x1|x-1| can be defined as x1x-1 if x1x \geq1 and as (x1)-(x-1) if x<1x <1.

STEP 2

We will solve the inequality in two parts, one for x1x \geq1 and another for x<1x <1.
First, let's solve for x1x \geq1. In this case, x1|x-1| can be replaced by x1x-1.
x12>xx -1 -2 > x

STEP 3

implify the inequality by subtracting xx from both sides.
12>0-1 -2 >0

STEP 4

Further simplify the inequality.
3>0-3 >0This inequality is not true, so there are no solutions for x1x \geq1.

STEP 5

Now, let's solve for x<1x <1. In this case, x1|x-1| can be replaced by (x1)-(x-1).
(x1)2>x-(x -1) -2 > x

STEP 6

implify the inequality by distributing the negative sign.
x+12>x-x +1 -2 > x

STEP 7

Further simplify the inequality by combining like terms.
x1>x-x -1 > x

STEP 8

Add xx to both sides of the inequality to isolate xx on one side.
1>2x-1 >2x

STEP 9

Divide both sides of the inequality by 22 to solve for xx.
.5>x-.5 > xThis inequality is true for x<.5x < -.5.

STEP 10

Combine the solutions from both parts. Since there are no solutions for xx \geq and the solution for x<x < is x<0.5x < -0.5, the solution to the inequality x2>x|x-|-2 > x is x<0.5x < -0.5.
So, the solution to the inequality is x<0.5x < -0.5.

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