s633210 s633210

23-04-2020
Mathematics

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What number would you add to both sides of x2 + 7x = 4 to complete the square?
A. 2^2
B. 7^2
C. 7^2/2
D. (7/2)^2

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306flower 306flower

23-04-2020

D. (7/2)^2

Then, you would be able to factor it to (x+3.5)^2

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