Posted by Need Help on Monday, September 17, 2007 at 9:01pm.
Express this function in vertex form by completing the square:
3x^2  4x + 1
PLEASE SHOW STEP BY STEP!!!

Math  drwls, Tuesday, September 18, 2007 at 8:55am
Assume
3x^2  4x + C to be a perfect square, (ax + b)^2, where a abd b are constants. The square would be
a^2 + 2ab + b^2. Therefore
a = sqrt3 and 2b sqrt3 = 4
b = 2/sqrt 3
b^2 = 4/3
3x^2  4x + 1 = (x sqrt 3  2/sqrt3)^2 1/3
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