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Mathematics 21 Online
OpenStudy (anonymous):

10x^2=20x+30

OpenStudy (anonymous):

10x^2-20x-30 I hope you see the pattern..

jhonyy9 (jhonyy9):

divide by 10 and you get

OpenStudy (anonymous):

x^2-2x-3 lol

jhonyy9 (jhonyy9):

\[x ^{2}-2x-3=0\]

OpenStudy (across):

Then\[(x-3)(x+1)=0\]

jhonyy9 (jhonyy9):

or factored is (x-3)(x+1)

jhonyy9 (jhonyy9):

exactly across

jhonyy9 (jhonyy9):

and than x_1=3 and x_2=-1

jhonyy9 (jhonyy9):

this is understandably ?

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