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Write the following equation in both standard and factored forms:

\[ f(x) = -2(3x + 2)(x - 2) / (2x + 5)(x + 1). \]

1 Answer

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Final answer:

The equation in factored form is already given. To write it in standard form, expand the numerator and denominator to get f(x) = (-6x² + 8x + 8) / (2x² + 7x + 5). The standard form is a single fraction with polynomials in the numerator and denominator.

Step-by-step explanation:

The factored form of the equation f(x) = -2(3x + 2)(x - 2) / (2x + 5)(x + 1) is already given. To write this as a standard form, we need to expand the numerator and denominator and then simplify if possible. As this is a rational function, the standard form would typically mean getting a single rational expression where the numerator and denominator are polynomials expressed as sums of terms in descending powers of x.

First, let's expand the numerator and denominator:

  • Numerator: -2(3x + 2)(x - 2) = -2(3x² - 6x + 2x - 4) = -2(3x² - 4x - 4)
  • Denominator: (2x + 5)(x + 1) = (2x² + 2x + 5x + 5) = (2x² + 7x + 5)

Therefore, the standard form of the equation is:

f(x) = (-6x² + 8x + 8) / (2x² + 7x + 5)

However, it might not be possible to simplify this fraction further without performing long division, which could result in a polynomial plus a remainder over the original denominator.

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