f(x) = 3x² + 21x + 35
f'(x) = ( 3 × 2 )x^(2-1) + ( 1 × 21 )x^(1-1) + ( 35 × 0 )
f'(x) = 6x¹ + 21x⁰ + 0
f'(x) = 6x + 21(1) + 0
f'(x) = 6x + 21
f"(x) = (6×1)x^(1-1) + ( 21 × 0 )
f"(x) = 6x⁰ + 0
f"(x) = 6(1) + 0
f"(x) = 6 + 0
f"(x) = 6
f"(3) = 6
f'(x) = (3 × 2)x² - ¹ + (21 × 1)x¹ - ¹ + (35 × 0)
f'(x) = (6 × 1)x + (21 × 1) + 0
f'(x) = 6x + 21 + 0
f"(x) = (6 × 1)x¹ - ¹ + (21 × 0)
f"(x) = (6 × 1) + 0
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f(x) = 3x² + 21x + 35
f'(x) = ( 3 × 2 )x^(2-1) + ( 1 × 21 )x^(1-1) + ( 35 × 0 )
f'(x) = 6x¹ + 21x⁰ + 0
f'(x) = 6x + 21(1) + 0
f'(x) = 6x + 21
f"(x) = (6×1)x^(1-1) + ( 21 × 0 )
f"(x) = 6x⁰ + 0
f"(x) = 6(1) + 0
f"(x) = 6 + 0
f"(x) = 6
f"(3) = 6
SOAL 1
f(x) = 3x² + 21x + 35
f'(x) = (3 × 2)x² - ¹ + (21 × 1)x¹ - ¹ + (35 × 0)
f'(x) = 6x¹ + 21x⁰ + 0
f'(x) = (6 × 1)x + (21 × 1) + 0
f'(x) = 6x + 21 + 0
f'(x) = 6x + 21
f"(x) = (6 × 1)x¹ - ¹ + (21 × 0)
f"(x) = 6x⁰ + 0
f"(x) = (6 × 1) + 0
f"(x) = 6 + 0
f"(x) = 6