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Year 11 Integration (Polynomials) Worksheet — Level 2 — Practice Set 2 — Answers

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Success TutoringWorksheetsAnswer sheetYear 11 · Mathematics · Calculus

Year 11 Integration (Polynomials) Worksheet — Level 2 — Practice Set 2 — Answers

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

1.Find ∫ (10x4 − 9x2 + 4) dx

Answer: 2x5 − 3x3 + 4x + C

  1. ∫ 10x4 dx = 2x5
  2. ∫ −9x2 dx = −3x3
  3. ∫ 4 dx = 4x
  4. Don't forget the constant of integration, C
2.Find ∫ (9x2 + 8x + 4) dx

Answer: 3x3 + 4x2 + 4x + C

  1. ∫ 9x2 dx = 3x3
  2. ∫ 8x dx = 4x2
  3. ∫ 4 dx = 4x
  4. Don't forget the constant of integration, C
3.Find ∫ (−5x4 − 4x + 4) dx

Answer: −x5 − 2x2 + 4x + C

  1. ∫ −5x4 dx = −x5
  2. ∫ −4x dx = −2x2
  3. ∫ 4 dx = 4x
  4. Don't forget the constant of integration, C
4.Find ∫ (−10x4 − 8x3 + 4x) dx

Answer: −2x5 − 2x4 + 2x2 + C

  1. ∫ −10x4 dx = −2x5
  2. ∫ −8x3 dx = −2x4
  3. ∫ 4x dx = 2x2
  4. Don't forget the constant of integration, C
5.Find ∫ (9x2 + 8x + 3) dx

Answer: 3x3 + 4x2 + 3x + C

  1. ∫ 9x2 dx = 3x3
  2. ∫ 8x dx = 4x2
  3. ∫ 3 dx = 3x
  4. Don't forget the constant of integration, C
6.Find ∫ (10x4 + 8x3 − 9x2) dx

Answer: 2x5 + 2x4 − 3x3 + C

  1. ∫ 10x4 dx = 2x5
  2. ∫ 8x3 dx = 2x4
  3. ∫ −9x2 dx = −3x3
  4. Don't forget the constant of integration, C
7.Find ∫ (5x4 + 6x2 + 1) dx

Answer: x5 + 2x3 + x + C

  1. ∫ 5x4 dx = x5
  2. ∫ 6x2 dx = 2x3
  3. ∫ 1 dx = x
  4. Don't forget the constant of integration, C
8.Find ∫ (15x4 − 4x3 − 1) dx

Answer: 3x5 − x4 − x + C

  1. ∫ 15x4 dx = 3x5
  2. ∫ −4x3 dx = −x4
  3. ∫ −1 dx = −x
  4. Don't forget the constant of integration, C
9.Find ∫ (−15x4 − 9x2 − 4x) dx

Answer: −3x5 − 3x3 − 2x2 + C

  1. ∫ −15x4 dx = −3x5
  2. ∫ −9x2 dx = −3x3
  3. ∫ −4x dx = −2x2
  4. Don't forget the constant of integration, C
10.Find ∫ (15x4 − 3x2 − 4x) dx

Answer: 3x5 − x3 − 2x2 + C

  1. ∫ 15x4 dx = 3x5
  2. ∫ −3x2 dx = −x3
  3. ∫ −4x dx = −2x2
  4. Don't forget the constant of integration, C
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