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OpenStudy (anonymous):
What value completes the square for the following? x^2 + 8x + __ A. 4 B. 8 C. 16 D. 32
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OpenStudy (anonymous):
lets think about this. we want to find a number that can make 2 numbers which add up to 8 and multiply out to the number we want to find. So in this case itd be 16. (x + 4)(x + 4). Foil that and you will see the rules 4 + 4 = 8 and 4 * 4 = 16
OpenStudy (anonymous):
That is what I was thinking thanks!
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