|x| this means absolute value making what ever number in the inside positive UNLESS you have a negative out front. Ex |8|=8. -|8|=-8. |-8|=8
-43 plus 17 equals -26. Hope this helps.
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Answer:
7.8 x 10^4 or 7.8e4 hope this helps!
The answer is ERROR i tried it by hand and by calculator and both answers ended up as ERROR