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6 February, 12:22

Let x^2-20x=10. What values make an equivalent number sentence after completing the square?

x^2-20x + () = ()

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  1. 6 February, 15:59
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    100 and 110.

    You would have to add 100 to both sides. This is because to complete the square, you need to take half of the x term and square it.
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