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6 November, 21:25

The area of a rectangular room is given by the trinomial 6x^2+7x-20. what are the possible dimensions of the barnyard? Use factoring.

A) 2x-5 and 3x+4

B) - 2x+5 and - 3x+4

C) 2x+5 and 3x-4

D) 2x-5 and 3x-4

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  1. 6 November, 21:41
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    Factoring out you know the first values must be 2 and 3 since 6 is positive. A negative will affect the inner and outer values.

    Each dimensions will produce:

    A) 6x^2 - 7x - 20

    B) 6x^2 - 23x + 20

    C) 6x^2 + 7x - 20

    D) 6x^2 - 23x + 20
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