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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
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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.
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OpenStudy (anonymous):
ha okay i did its 81:P
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