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Mathematics 7 Online
OpenStudy (anonymous):

okay tried this one the same way but it didn't work? What number completes the square? x2 - 18x + ? 81 64 36 324 @primeralph @Mertsj

OpenStudy (primeralph):

Try and lets see.

OpenStudy (anonymous):

18 squared is4.24 and 4.24*4.24=17.9

OpenStudy (primeralph):

Bean, find half of 18 first.

OpenStudy (anonymous):

o i squared it ha nvm its 9:P

OpenStudy (primeralph):

Yeah it happens. Now square that. Note: square, not square root.

OpenStudy (anonymous):

ha okay i did its 81:P

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