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22 May, 03:12

C = 3y² + 4y + 4

D = - 7y2 + 3y - 6

D-C-

+2
Answers (1)
  1. 22 May, 04:18
    0
    -10y^2-y-10

    Step-by-step explanation:

    Subtract the 1st equation from the 2nd:

    D-C = (-7y^2+3y-6) - (3y^2+4y+4)

    = - 7y^2+3y-6-3y^2-4y-4

    = (-7-3) y^2 + (3-4) y + (-6-4)
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