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19-05-2017
Mathematics

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find the number to be added to complete the square x^2+6x-4

find the number to be added to complete the square x26x4 class=

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19-05-2017

Assuming we want to factor the formula to (x+3)(x+3), you want to have a +9 where there is a -4 now. So you must add 13.

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