yohansegarcia06 yohansegarcia06 10-02-2021 Mathematics contestada which of the following quadratic will have a maximum value at x=3 (A) y=x^2-6x+19 (B) y=-4x^2+24x-21 (C) y=-2x^2+20x-49 (D) y=2x^2-3x+7
