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Calculate the integral and write the answer in simplest form.

int(-2x^(2)+5)dx
Answer:

Calculate the integral and write the answer in simplest form.\newline(2x2+5)dx \int\left(-2 x^{2}+5\right) d x \newlineAnswer:

Full solution

Q. Calculate the integral and write the answer in simplest form.\newline(2x2+5)dx \int\left(-2 x^{2}+5\right) d x \newlineAnswer:
  1. Given Integral: We are given the integral to solve:\newline(2x2+5)dx\int(-2x^2 + 5)\,dx\newlineWe will integrate the function term by term.
  2. Integrating 2x2-2x^2: First, we integrate the term 2x2-2x^2 with respect to xx. The integral of xnx^n with respect to xx is x(n+1)n+1\frac{x^{(n+1)}}{n+1}, so the integral of 2x2-2x^2 is: (2x2)dx=2×(x2)dx=2×x(2+1)2+1=2×x33\int(-2x^2)dx = -2 \times \int(x^2)dx = -2 \times \frac{x^{(2+1)}}{2+1} = -2 \times \frac{x^3}{3}
  3. Integrating 55: Next, we integrate the constant term 55 with respect to xx. The integral of a constant aa with respect to xx is axax, so the integral of 55 is: (5)dx=5x\int(5)dx = 5x
  4. Combining Integrals: Now, we combine the results of the two integrals and add the constant of integration CC. The combined integral is: 2×x33+5x+C-2 \times \frac{x^3}{3} + 5x + C
  5. Final Answer: We simplify the expression by combining like terms, if any. However, in this case, there are no like terms to combine, so the expression is already in its simplest form.\newlineThe final answer is:\newline23×x3+5x+C-\frac{2}{3} \times x^3 + 5x + C