Question 4 - Math: Calculator Practice Test for the SAT Exam

In the xy-plane, the function \(h(x) = 3x^3 - ax^2 + bx + 4\), where b is a constant, crosses the x-axis at \((r, 0)\), \((4, 0)\), and \((1, 0)\).

What is the value of \(a + b\)?

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