S (4x³ - 6x + 3) dx =
[tex]f(4 {x}^{2} - 6x + 3) dx \\ = f \: 4 {x}^{2} \: dx - f \: 6x \: dx + f3dx \\ = \frac{4 {x}^{3} }{3} - f6x \: dx + f3 \: dx \\ = \frac{4 {x}^{3} }{3} - 3 {x}^{2} + 3x \\ = \frac{4 {x}^{3} }{3} - 3 {x}^{2} + 3x + c[/tex]
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