Fill in the blank with a number to make the expression a perfect square.

v^2-12v+


Answer :

Answer:

(v - x)^2   is a perfect square   (what is x)

One could write

v^2 - 2 v x + x^2 = v^2 - 12 v + ??

-2 v x + x^2 = -12 v

x = 6  since 2 v x = 12 v

(v - 6)^2 = v^2 - 12 v x + 36

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