Answer:
Set the polynomial equal to y to find the properties of the parabola. y = 3 x 2 + 12 x − 9 Complete the square for 3 x 2 + 12 x − 9 . Tap for more steps... 3 ( x + 2 ) 2 − 21 Set y equal to the new right side. y = 3 ( x + 2 ) 2 − 21
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