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For the following equation, find 
(dy)/(dx).

y=-5x^(3)+7x+6
Answer: 
(dy)/(dx)=

For the following equation, find dydx \frac{d y}{d x} .\newliney=5x3+7x+6 y=-5 x^{3}+7 x+6 \newlineAnswer: dydx= \frac{d y}{d x}=

Full solution

Q. For the following equation, find dydx \frac{d y}{d x} .\newliney=5x3+7x+6 y=-5 x^{3}+7 x+6 \newlineAnswer: dydx= \frac{d y}{d x}=
  1. Given Function: Given the function y=5x3+7x+6y = -5x^3 + 7x + 6, we need to find the derivative of yy with respect to xx, denoted as dydx\frac{dy}{dx}. To do this, we will use the power rule for differentiation, which states that the derivative of xnx^n with respect to xx is nxn1n\cdot x^{n-1}.
  2. Differentiate 5x3-5x^3: First, we differentiate the term 5x3-5x^3. Using the power rule, the derivative of 5x3-5x^3 with respect to xx is 5×3x31=15x2-5 \times 3x^{3-1} = -15x^2.
  3. Differentiate 7x7x: Next, we differentiate the term 7x7x. The derivative of 7x7x with respect to xx is 77, since the power of xx is 11 and 1×x11=1×x0=11\times x^{1-1} = 1\times x^0 = 1.
  4. Differentiate Constant: Finally, we differentiate the constant term 66. The derivative of a constant with respect to xx is 00, because constants do not change as xx changes.
  5. Combine Derivatives: Combining the derivatives of all terms, we get dydx=15x2+7+0\frac{dy}{dx} = -15x^2 + 7 + 0.
  6. Simplify Final Derivative: Simplifying the expression, we see that the +0+0 is unnecessary and can be omitted. Therefore, the final simplified form of the derivative is dydx=15x2+7\frac{dy}{dx} = -15x^2 + 7.

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