Jawab:
turunan
f(x) = u v
f '(x)= u' v + uv'
Penjelasan dengan langkah-langkah:
f(x) = (2x -1)² (x + 3)
u= (2x-1)² maka u' = 2 (2x -1) (2)= 4(2x-1) = (8x - 4)
v = x + 3 maka v' = 1
f'(x)= u' v + uv '
f'(x) = (8x - 4)(x+ 3) + (2x-1)² (1)
f'(x)= 8x² + 20x -12 + 4x² -4x + 1
f'(x)= 12x² + 16x - 11
..
cara lain dengan
f(x)= a xⁿ --> f'(x)= a.n xⁿ⁻¹
f(x)= (2x - 1)² (x + 3)
f(x)= (4x² - 4x +1)(x + 3)
f(x)= 4x³ + 12x² - 4x² -12x + x + 3
f(x)= 4x³ + 8x² -11 x + 3
f'(x) = 12 x² + 16 x - 11
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Jawab:
turunan
f(x) = u v
f '(x)= u' v + uv'
Penjelasan dengan langkah-langkah:
f(x) = (2x -1)² (x + 3)
u= (2x-1)² maka u' = 2 (2x -1) (2)= 4(2x-1) = (8x - 4)
v = x + 3 maka v' = 1
f'(x)= u' v + uv '
f'(x) = (8x - 4)(x+ 3) + (2x-1)² (1)
f'(x)= 8x² + 20x -12 + 4x² -4x + 1
f'(x)= 12x² + 16x - 11
..
cara lain dengan
f(x)= a xⁿ --> f'(x)= a.n xⁿ⁻¹
f(x)= (2x - 1)² (x + 3)
f(x)= (4x² - 4x +1)(x + 3)
f(x)= 4x³ + 12x² - 4x² -12x + x + 3
f(x)= 4x³ + 8x² -11 x + 3
f'(x) = 12 x² + 16 x - 11