Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

For the following equation, find 
f^(')(x).

f(x)=-7x^(5)+7x^(3)-9x^(2)-9x-8
Answer: 
f^(')(x)=

For the following equation, find f(x) f^{\prime}(x) .\newlinef(x)=7x5+7x39x29x8 f(x)=-7 x^{5}+7 x^{3}-9 x^{2}-9 x-8 \newlineAnswer: f(x)= f^{\prime}(x)=

Full solution

Q. For the following equation, find f(x) f^{\prime}(x) .\newlinef(x)=7x5+7x39x29x8 f(x)=-7 x^{5}+7 x^{3}-9 x^{2}-9 x-8 \newlineAnswer: f(x)= f^{\prime}(x)=
  1. Apply Power Rule: To find the derivative of the function f(x)=7x5+7x39x29x8f(x) = -7x^{5} + 7x^{3} - 9x^{2} - 9x - 8, we will apply the power rule to each term separately. The power rule states that the derivative of xnx^n with respect to xx is nx(n1)n\cdot x^{(n-1)}.
  2. Derivative of 7x5-7x^{5}: First, we find the derivative of the term 7x5-7x^{5}. Using the power rule, we get:\newlineddx(7x5)=7×5×x51=35x4\frac{d}{dx}(-7x^{5}) = -7 \times 5 \times x^{5-1} = -35x^{4}.
  3. Derivative of 7x37x^{3}: Next, we find the derivative of the term 7x37x^{3}. Using the power rule, we get:\newlineddx(7x3)=73x31=21x2\frac{d}{dx}(7x^{3}) = 7 \cdot 3 \cdot x^{3-1} = 21x^{2}.
  4. Derivative of 9x2-9x^{2}: Then, we find the derivative of the term 9x2-9x^{2}. Using the power rule, we get:\newlineddx(9x2)=9×2×x21=18x\frac{d}{dx}(-9x^{2}) = -9 \times 2 \times x^{2-1} = -18x.
  5. Derivative of 9x-9x: After that, we find the derivative of the term 9x-9x. Since this is a linear term, its derivative is simply the coefficient: ddx(9x)=9\frac{d}{dx}(-9x) = -9.
  6. Derivative of Constant Term: Lastly, the derivative of a constant term like 8-8 is 00, since constants do not change and therefore their rate of change is zero:\newline rac{d}{dx}(-8) = 0.
  7. Combine Derivatives: Now, we combine all the derivatives we found to get the derivative of the entire function f(x)f(x):f(x)=35x4+21x218x9.f'(x) = -35x^{4} + 21x^{2} - 18x - 9.

More problems from Find derivatives of using multiple formulae