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OpenStudy (lena772):
In the function f(x) = 4(x2 − 6x + ____) + 20, what number belongs in the blank to complete the square?
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ganeshie8 (ganeshie8):
take half of `x` coeffecient, square it
OpenStudy (lena772):
What is the x coefficient?
OpenStudy (lena772):
6?
ganeshie8 (ganeshie8):
yes being picky, its `-6`
ganeshie8 (ganeshie8):
take half of it
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OpenStudy (lena772):
-3^2 = 9
OpenStudy (lena772):
So the answer is 9?
ganeshie8 (ganeshie8):
9 is \(\color{red}{\checkmark}\)
OpenStudy (lena772):
yay
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