The function below has at least one rational zero. Use this fact to find all zeros of the function. \[ h(x)=6 x^{3}-43 x^{2}+6 x+7 \] If there is more than one zero, separate them with commas. Write exact values, not decimal approximations.
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To find the rational zeros of the function \( h(x) = 6x^3 - 43x^2 + 6x + 7 \), we can apply the Rational Root Theorem. The possible rational roots are given by the factors of the constant term (7) divided by the factors of the leading coefficient (6). These factors are \( \pm 1, \pm 7 \) for the constant and \( \pm 1, \pm 2, \pm 3, \pm 6 \) for the leading coefficient. Thus, the possible rational zeros are \( \pm 1, \pm \frac{1}{2}, \pm \frac{1}{3}, \pm \frac{1}{6}, \pm 7, \pm \frac{7}{2}, \pm \frac{7}{3}, \pm \frac{7}{6} \). Testing these values, we find that \( x = 7 \) is a zero. Using synthetic division to factor the polynomial, we divide \( h(x) \) by \( (x - 7) \) and find: \[ h(x) = (x - 7)(6x^2 + 7). \] Now we can set \( 6x^2 + 7 = 0 \) to find additional zeros. Solving this gives: \[ 6x^2 = -7 \quad \Rightarrow \quad x^2 = -\frac{7}{6}. \] Since this results in no real solutions, we conclude that the function has only one rational zero. Therefore, the zeros of the function are: \[ x = 7. \]