1962 AHSME Problems/Problem 26

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Problem

For any real value of $x$ the maximum value of $8x - 3x^2$ is:

$\textbf{(A)}\ 0\qquad\textbf{(B)}\ \frac{8}3\qquad\textbf{(C)}\ 4\qquad\textbf{(D)}\ 5\qquad\textbf{(E)}\ \frac{16}{3}$

Solution

"Unsolved"