SOLUTION: (-7+√69)/2,(-7-√69)/2
These are my exact solutions, need to find approximate solution to the 3 decimals, the answers are 0.653 and -7.653, but I do not know how
Algebra.Com
Question 279658: (-7+√69)/2,(-7-√69)/2
These are my exact solutions, need to find approximate solution to the 3 decimals, the answers are 0.653 and -7.653, but I do not know how they come up with these decimal answers, every way I try I get something different, could you show me step by step how they come up with these decimal numbers,
Thankyou
Found 2 solutions by vleith, richwmiller:
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
I assume you are allowed to use a calculator to solve for
So let's do that
when rounded to 3 decimals
Same thing going the other way
when rounded to 3 decimals
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
sqrt(69)=8.306
sqrt(69)/2=8.3066/2=4.153
7/2=-3.5
(-7+sqrt(69))/2
-3.5+4.153=.653
(-7-sqrt(69))/2
-3.5-4.153=-7.653
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