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#### karush

##### Well-known member

- Jan 31, 2012

- 2,678

$$F(x)=(7x^6+8x^3)^4$$

chain rule

$$4(7x^6+8x^3)^3(42x^5+24x^2)$$

factor

$$4x^3(7x^3+8)^3 6x^2(7x^3+4)$$

ok W|A returned this but dont see where the 11 came from

$$24 x^{11} (7 x^3 + 4) (7 x^3 + 8)^3$$