4x^2+27x-7=

Or is it prime?

4x^2+27x-7=

Or is it prime?

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Middletown, CT

Hi again David;

4x^{2}+27x-7

For the FOIL...

FIRST must be (4x)(x) or (2x)(2x)=4x^{2}

OUTER and INNER must add-up to 27x

LAST must be (7)(1) or (1)(7) and one number must be negative.

(4x-1)(x+7)

Let's FOIL...

FIRST...(4x)(x)=4x^{2}

OUTER...(4x)(7)=28x

INNER...(-1)(x)=-1x=-x

LAST...(-1)(7)=-7

4x^{2}+28x-x-7

4x^{2}+27x-7

Hallandale, FL

4x

D = 27

x

x

4x

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