MCQ
If $y = `(3x^2 - 4x + 7.5)^4$, "then" dy/dx` is ______
- A$4(3x^2 - 4x + 7.5)(6x - 4x)$
- B$4(3x^2 + 4x + 7.5)^3 (6x + 4x)$
- C$4(3x^2 + 4x + 7.5) (6x + 4x)$
- ✓$4(3x^2 - 4x + 7.5)^3 (6x - 4)$
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