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f'(x) = 10x - 3
2. f(x) = x² + x + 2 / x
= x² + x + 2x^-1
f'(x) = 2x + 1 - 2/x²
= 2x - 2/x² + 1
3. f(x) = √x + ³√x²
= x^1/2 + x^2/3
f'(x) = 1/2 x^-1/2 + 2/3 x^-1/3
= 1/2√x + 2/3∛x
4. f(x) = x² - 6x + 9 / x - 3
misal u = 9 maka u' = 0
v = x-3 v ' = 1
u/v = 0(x-3) - 9(1) / (x-3)²
= - 9/(x-3)²
f'(x) = 2x - 9/(x-3)² - 6
5. f( x - 2 ) = 3x² + 1
= 3(x-2)² + 1
= 3(x²+4x+4)+1
= 3x²+12x+13
f'( x - 2 ) = 6x + 12