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11th Grade Integration (Polynomials) Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the 11th Grade calculus worksheet.

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11th Grade Integration (Polynomials) Worksheet — Level 1 — Practice Set 3 — Answers

Use the rule ∫ xⁿ dx = xⁿ⁺¹ / (n+1) + C.

1.Find ∫ (8x3 − 1) dx

Answer: 2x4 − x + C

  1. ∫ 8x3 dx = 2x4
  2. ∫ −1 dx = −x
  3. Don't forget the constant of integration, C
2.Find ∫ (12x3 − 2) dx

Answer: 3x4 − 2x + C

  1. ∫ 12x3 dx = 3x4
  2. ∫ −2 dx = −2x
  3. Don't forget the constant of integration, C
3.Find ∫ (−9x2 + 1) dx

Answer: −3x3 + x + C

  1. ∫ −9x2 dx = −3x3
  2. ∫ 1 dx = x
  3. Don't forget the constant of integration, C
4.Find ∫ (−8x3 + 6x) dx

Answer: −2x4 + 3x2 + C

  1. ∫ −8x3 dx = −2x4
  2. ∫ 6x dx = 3x2
  3. Don't forget the constant of integration, C
5.Find ∫ (10x4 − 6x2) dx

Answer: 2x5 − 2x3 + C

  1. ∫ 10x4 dx = 2x5
  2. ∫ −6x2 dx = −2x3
  3. Don't forget the constant of integration, C
6.Find ∫ (−8x3 + 3) dx

Answer: −2x4 + 3x + C

  1. ∫ −8x3 dx = −2x4
  2. ∫ 3 dx = 3x
  3. Don't forget the constant of integration, C
7.Find ∫ (8x3 − 6x) dx

Answer: 2x4 − 3x2 + C

  1. ∫ 8x3 dx = 2x4
  2. ∫ −6x dx = −3x2
  3. Don't forget the constant of integration, C
8.Find ∫ (−4x3 + 4) dx

Answer: −x4 + 4x + C

  1. ∫ −4x3 dx = −x4
  2. ∫ 4 dx = 4x
  3. Don't forget the constant of integration, C
9.Find ∫ (12x3 + 9x2) dx

Answer: 3x4 + 3x3 + C

  1. ∫ 12x3 dx = 3x4
  2. ∫ 9x2 dx = 3x3
  3. Don't forget the constant of integration, C
10.Find ∫ (12x3 + 2) dx

Answer: 3x4 + 2x + C

  1. ∫ 12x3 dx = 3x4
  2. ∫ 2 dx = 2x
  3. Don't forget the constant of integration, C
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