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6 April, 15:30

Which Polynomial represents the difference below?

5x²+9x+3

- (6x²-3x)

A. - x²+6x+3

B. - x²+12x+3

C. 5x²+3x+3

D. 5x²+6x+3

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Answers (2)
  1. 6 April, 17:42
    0
    5x² + 9x+3 - (6x²-3x)

    1 Remove parentheses.

    5x²+9x+3-6x²+3x

    2 Collect like terms.

    (5x² - 6x²) + (9x+3x) + 3

    3 Simplify.

    -x² + 12x+3 which is B
  2. 6 April, 19:20
    0
    The answer is B

    Step-by-step explanation:

    5x² + 9x + 3 - (6x ² - 3x)

    this is easier if you distribute the negative in front of the perenthesis so ...

    5x² + 9x + 3 + (-6x² + 3x)

    then you just combine the terms with the same variable and exponent

    -x² + 12x + 3
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