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Mathematics 19 Online
OpenStudy (anonymous):

4x2 + ___x + 49

OpenStudy (angela210793):

28

OpenStudy (anonymous):

sorry i forgot the 2

OpenStudy (angela210793):

(2x+7)^2=4x^2+28x+49

OpenStudy (anonymous):

28

OpenStudy (anonymous):

\[(2x+7)^2=4x^2+28x+49\]

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