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January 26, 2015

January 26, 2015

Posted by **chris** on Monday, February 15, 2010 at 3:56am.

Is it because absolute x = -x and x?

- 11th grade -
**Anonymous**, Monday, February 15, 2010 at 5:08amWellt the so calles abs: R -> R^+_0 function assigns every x its absolute value hence a positive number or zero.

Squaring a number always yields s.th. positive as a result. It follows the statement.

- 11th grade algebra -
**PsyDAG**, Monday, February 15, 2010 at 3:33pmYes, since (-x)^2 or x^2 both yield x^2, the square root of X^2 = IxI = absolute value of x.

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