In the function f(x) = 4(x2 − 6x + ____) + 20, what number belongs in the blank to complete the square?

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02-06-2016
Mathematics

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In the function f(x) = 4(x2 − 6x + ____) + 20, what number belongs in the blank to complete the square?

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Hagrid Hagrid · Answer 1 · 2016-06-03T02:29:53+02:00

Hagrid Hagrid

03-06-2016

The right answer for the question that is being asked and shown above is that: In the function f(x) = 4(x2 − 6x + ____) + 20, what number belongs in the blank to complete the square?

x2 - 6x + 9

So the answer on the blank space is 9. It should be a perfect square.
= 6/2
= 3^2
= 9

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