jorgetineo2005 jorgetineo2005 22-10-2021 Mathematics contestada 5x(x−2)+6x−3(x^2−7) is equivalent to which of the following expressions? A) 2x^2+6x−9 B) 2x^2−4x−21 C) 2x^2−16x+21 D) 2x^2−4x+21
