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12 April, 01:03

Select all the expressions that are equivalent to the polynomial below.

(4x+5) (-3x-1)

A (-16x2 + 10x - 3) + (4x2 - 29x - 2)

B 3 (x - 5) - 2 (6x2 + 9x + 5)

C 2 (x - 1) - 3 (4x2 + 7x + 1)

D (2x2 - 11x - 9) - (14x2 + 8x - 4)

E (-15x2 + 9x - 10) + (3x2 - 10x - 5)

F (4x2 - 13x - 7) - (16x2 + 9x - 5)

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Answers (1)
  1. 12 April, 03:21
    0
    The answers are: D and C and A and E

    because:

    B 3 (x - 5) - 2 (6x2 + 9x + 5) = - 12 x^2 - 15x - 25

    F (4x2 - 13x - 7) - (16x2 + 9x - 5) = - 12 x2 - 22x - 2

    E (-15x2 + 9x - 10) + (3x2 - 10x - 5) = - 12 x^2 - x - 15
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