college algebra

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f(x)=x^2-3 and g(x)=4x+1 to

Evaluate (f-g)(-3)


Then find (fg)(x)

Thanks a million

  • college algebra -

    (fg)(x) = f(x)*g(x) = (x^2-3)(4x+1) = 4x^3 + x^2 - 12x - 3

    (f-g)(-3) = f(-3)-g(-3) = 6-(-11) = 17

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