Pre-Cal

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Determine the domains of (a)f and
(b) f X g

f(x) = 1/x g(x)= x + 3

For the domain of f I had x > 0 and for f X g I had all real numbers but this was wrong.

  • scroll down -

    answered earlier

  • Pre-Cal -

    solve the problem:
    f(x) = -5x+2 and g(x) = 8x^2+9x+7

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