kyletrotter7350 kyletrotter7350

08-10-2019
Mathematics

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Find (f*g)(x) when f(x)=x^2-7x+12 and g(x)=7/x^2-16

Please help.

Respuesta :

PollyP52 PollyP52

08-10-2019

Answer:

7(x - 3) / (x + 4).

Step-by-step explanation:

(f*g)(x) = f(x) * g(x)

= (x^2-7x+12) * 7/x^2-16

= 7(x - 4)(x - 3) / (x + 4)(x - 4)

(x - 4) is common to top and bottom of the fraction, so it is

7(x - 3) / (x + 4).

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