SOLUTION: solve x^2-16x+32=0 by completing the square

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x^2-16x+32=0

First add -32 to each side and leave a blank space after the x^2- 16x .


You must take half of the -16 (which is -4) and square it (which would be 16). Add +16 to each side of the equation on the blank spaces I provided you.


Now, notice that the left side is a perfect square trinomial:


Now you can take the square root of each side:


Remember that ??


Last add +4 to each side:


R^2 at SCC