Mathematics 68 Online
OpenStudy (anonymous):

I need help with evaluate expressions. One of the questions is l-3l

OpenStudy (anonymous):

Anything within | | is ALWAYS positive. So 3.

OpenStudy (anonymous):

Recall that $|a| = a \text{ if } a >= 0$ $|a| = -a \text{ if } a < 0$

OpenStudy (anonymous):

Which is the absolute value. For examples: |2| = 2 |0| = 0 |-45454| = 45454

OpenStudy (anonymous):

It's absolute value.

OpenStudy (anonymous):

thanks so much :)

OpenStudy (anonymous):

Push good answer for me and Polpak so no other helper has to view this

OpenStudy (anonymous):

how do i do that?

OpenStudy (anonymous):

OpenStudy (anonymous):

i dont see it, is it the medal

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