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Year 12 Integration (Polynomials) Worksheet — Level 1 — Answers

Answer sheet with worked solutions for the Year 12 calculus worksheet.

Success TutoringWorksheetsAnswer sheetYear 12 · Mathematics · Calculus

Year 12 Integration (Polynomials) Worksheet — Level 1 — Answers

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

1.Find ∫ (10x4 + 8x) dx

Answer: 2x5 + 4x2 + C

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

Answer: x4 − 3x3 + C

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

Answer: −2x4 − 3x3 + C

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

Answer: −x2 + x + C

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

Answer: 2x3 − x2 + C

  1. ∫ 6x2 dx = 2x3
  2. ∫ −2x dx = −x2
  3. Don't forget the constant of integration, C
6.Find ∫ (12x2 + 6x) dx

Answer: 4x3 + 3x2 + C

  1. ∫ 12x2 dx = 4x3
  2. ∫ 6x dx = 3x2
  3. Don't forget the constant of integration, C
7.Find ∫ (5x4 + 8x3) dx

Answer: x5 + 2x4 + C

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

Answer: −2x3 + 2x + C

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

Answer: −2x5 − 2x2 + C

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

Answer: −x3 − x + C

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