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OpenStudy (anonymous):
Find the equation of the tangent line at x = -2 for f(x) = 1 +2x + 4x^2 +3x^3.
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OpenStudy (alekos):
find f'(x)
OpenStudy (anonymous):
I got y=22x +33 for my answer. Is that correct?
OpenStudy (alekos):
you're absolutely right! well done
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