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Mathematics 21 Online
OpenStudy (anonymous):

What number must you add to complete the square? x^2+18x=-13

OpenStudy (anonymous):

repeat after me... half of 18 is 9 9 squared is 81 that is your answer

OpenStudy (anonymous):

Heh, 80...

OpenStudy (anonymous):

Thank you

OpenStudy (vishweshshrimali5):

satellite u are again right

OpenStudy (anonymous):

80?

OpenStudy (anonymous):

Sensei (deep bow)

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