By power rule: q'(x) = 3x2 + 6x - 297 = 0
x2 + 2x - 99 = 0
(x - 9)(x + 11) = 0
x = 9 , - 11
Ariana D.
asked • 10/12/21Let q ( x ) = x^3 + 3 x^2 − 297 x + 7 . Find all values of x for which q ′ ( x ) = 0 .
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