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Mathematics 15 Online
OpenStudy (anonymous):

Evaluate 15 − 4 + (7 − 5)2

OpenStudy (lgbasallote):

to avoid confusion i think that's writtten as \[\huge 15 - 4 + (7-5)^2\]

OpenStudy (ksaimouli):

|dw:1342655539014:dw|

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