I really need help with this

asked Apr 18, 2021 131 views

0 votes

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6 votes

Answer:

100

Explanation:

To complete the square, you have to add (
(b)/(2) )² to each side.

So, -20 divided by 2 is -10. -10 squared is 100, so add 100 to both sides of the equation to complete the square.

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