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Math·Advanced Math·Nonlinear functions

hard

$$y=2x^2-24x+54$$The given equation represents a parabola in the xy-plane. Which of the following equations that represent the same parabola displays the x-intercepts as constants or coefficients?

A

$y=2(x^2-12x)+54$

B

$y=2x(x-12)+54$

C

$y=2(x-6{)}^2-18$

D

$y=2(x-9)(x-3)$