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I need to find f o g(x) and g o f(x).

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f(x)=3x^2-5 g(x)= 8/x
Thank You.

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asked Mar 14, 2014 in ALGEBRA 1 by chrisgirl Apprentice

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1 Answer

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The functions are f(x) = 3x² - 5 and g(x) = 8/x.

To find the fog(x)

= f(g(x))

= f(8/x)

= 3(8/x)²- 5

= 3(64/x²) - 5

= (192/x²) - 5.

Therefore, fog(x) = (192/x²) - 5.

To find the gof(x)

= g(f(x))

= g(3x ²- 5)

= 8/(3x² - 5).

Therefore, gof(x) = 8/(3x² - 5).

answered Mar 14, 2014 by dozey Mentor

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