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Mathematics 15 Online
EndersWorld:

Checking

EndersWorld:

\[(5-2\sqrt2)(1-2\sqrt2)\] \[5-2\sqrt2-10\sqrt2-4\sqrt4\] \[5-2\sqrt2-10\sqrt2-8\] \[-3-12\sqrt2\]

EndersWorld:

@hero

Hero:

Looks right once again.

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