Three real valued functions f, g, and h are defined by $f(x) = x^2 + 3x + 5, g(x) = 2 − 2x + x^2, h(x) = x^2 + 4x – 21$ \[\] What is the domain of the function $ \bigg( \large\frac{f+g}{h} \bigg) $?

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