Mathematics, 12.08.2020 04:01 EMQPWE

Find the x-values (if any) at which f is not continuous. Which of the discontinuities are removable? (Enter your answers from smallest to largest. Enter NONE in any unused answer blanks.) f(x) = x + 3 x2 − 2x − 15

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Find the x-values (if any) at which f is not continuous. Which of the discontinuities are removable?...