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

1 Answer

2 votes

Answer:

9

Explanation:

6x=2*x*(a number), (a number)^2=the number we need. A number=3, the number is 3^2=9

User Salamey
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