Practice problem
Let f(x)=4x5+3x3−7f(x)=4x^5+3x^3-7f(x)=4x5+3x3−7. Find f′′(x)f''(x)f′′(x).
20x4+9x220x^4+9x^220x4+9x2
100x3+27x100x^3+27x100x3+27x
80x3+18x80x^3+18x80x3+18x
13x3+8x13x^3+8x13x3+8x
Type a concept, like “slope” or “photosynthesis”.