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5 November, 03:40

Select ALL the correct answers.

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

--12r2 - 19. r - 5

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

0

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

o

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

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

0

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

0

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

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  1. 5 November, 03:55
    0
    2 (x - 1) - 3 (4 x² + 7 x + 1)

    (-16 x² + 10 x - 3) + (4 x² - 29 x - 2) these expressions are equivalent to the polynomial - 12 r² - 19 r - 5

    Step-by-step explanation:

    2 (x - 1) - 3 (4 x² + 7 x + 1)

    = 2 x - 2 - 12 x² - 21 x - 3

    = - 12 x² - 19 x - 5

    This expression is equivalent to the polynomial - 12 r² - 19 r - 5

    Another equation is

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

    = - 16 x² + 10 x - 3 + 4 x² - 29 x - 2

    = - 12 x² - 19 x - 5

    This expression is also equivalent to the polynomial - 12 r² - 19 r - 5
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