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Cristofer
Mathematics
3 September, 10:41
If f (x) = 2x^3-9x^2-5x find f (2a)
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Katelyn Daugherty
3 September, 10:57
0
I think you just substitute 2a for x in the equation.
f (2a) = 2 (2a) ^3 - 9 (2a) ^2 - 5 (2a)
Simplify:
f (2a) = 16a^3 - 36a^2 - 10a
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