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Algebra

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Given f(x)=x^2 + x + 4 and h(x)= 3x +2, evaluate the composite function.
f [h(x)]

  • Algebra - ,

    f(h(x) )
    = f(3x+2)
    = (3x+2)^2 + (3x+2) + 4
    = 9x^2 + 12x + 4 + 3x + 2 + 4
    = 9x^2 + 15x + 10

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