Hello, I really don't know what title should I use. But please,help me indicate my answer whether it is correct or wrong. Okay? 1) -|12| (+12) = -144 2) |8| + (+12) = +20 3) |24| - (+23) = +1 Also guys, what program do you use when creating mathematics formula? THANKS
They all seem good to me. Here are some more examples: |-12|(+12)=144 8-|-12|=-4 24-|-23|=1 I write my essays in MS Word usually and I use its extension named Mathtype that produces images of formulas written in Latex. This site also uses Latex as its equation editor.
It's easier if you use the asterisk to show multiplication, or even a lowercase x. The way the absolute (| |) works is after any evaluation within the | and | is done, just drop the sign. Any signs outside the marks remain. -|1+2-4| x |2| = -|-1| x 2 = - 1 x 2 = -2 The "-" in "- 1 x 2" is the minus sign OUTSIDE the Absolute marks. Hope this helps, --Rich