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How do you factor the expression: -20x^2 - 27x- 6?

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How do you factor the expression: -20x^2 - 27x- 6?

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Posted (Answer #1)

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The expression -20x^2 - 27x - 6 can be written as -1*(20x^2 + 27 - 6). To write this in the form of two terms where the order of x is 1 is possible only to do with the roots of the expression. The roots of the expression -20x^2 - 27x - 6 are not rational values.

x1 =` -27/40 + sqrt(27^2 - 4*6*20)/40` = `-27/40 + sqrt 249 / 40`

x2 = `-27/40 - sqrt 249/40`

The expression would have to be written as `-1*(x + 27/40 - sqrt 249/40)(x + 27/40 + sqrt 249/40)`

The factorized form of -20x^2 - 27x - 6 is `-1*(x + 27/40 - sqrt 249/40)(x + 27/40 + sqrt 249/40)`

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