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Mathematics 18 Online
OpenStudy (anonymous):

4x2 + ___x + 49

OpenStudy (anonymous):

28

myininaya (myininaya):

so i suppose you want us to put a number there that completes the square right?

myininaya (myininaya):

\[(2x+7)^2=(2x+7)(2x+7)=4x^2+14x+14x+49=4x^2+28x+49\]

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