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Mathematics 7 Online
OpenStudy (anonymous):

* find positive intergers a and b such that

OpenStudy (anonymous):

\[\huge (\sqrt[3]{a}+\sqrt[3]{b}-1)^2=49+20\sqrt[3]{6}\]

OpenStudy (anonymous):

square out the left hand side and equate like parts. you should get a system of equations which you can solve

OpenStudy (anonymous):

*

OpenStudy (anonymous):

?

OpenStudy (anonymous):

not working

OpenStudy (anonymous):

k, just a sec...

OpenStudy (anonymous):

\[\text{\let} ...x^3=a,y^3=b\] \[(x+y-1)^2=x^2+y^2+1+2(xy-x-y)=49+20\sqrt[3]{6}\]

OpenStudy (anonymous):

how did you type text in the equation editor?

OpenStudy (anonymous):

i said \text{} and put inside the bracects

OpenStudy (anonymous):

ty

OpenStudy (anonymous):

\[\text{thank you}\]

OpenStudy (anonymous):

lol yeah it works and you can colour it green or red or something \color{green}{}

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

\[\color{green}{\text{the number on the right hand side is a square}}\]

OpenStudy (anonymous):

\[49+20\sqrt[3]{6}=29+20(1+\sqrt[3]{6})\]

OpenStudy (anonymous):

tough one...

OpenStudy (anonymous):

@pgpilot326

OpenStudy (anonymous):

nice, thanks!

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