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12th Grade Integration (Polynomials) Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the 12th Grade calculus worksheet.

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12th Grade Integration (Polynomials) Worksheet — Level 1 — Practice Set 3 — Answers

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

1.Find ∫ (−4x3 + 1) dx

Answer: −x4 + x + C

  1. ∫ −4x3 dx = −x4
  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 ∫ (−12x3 − 4x) dx

Answer: −3x4 − 2x2 + C

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

Answer: −3x2 − x + C

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

Answer: −x5 + 2x2 + C

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

Answer: −x4 − 2x + C

  1. ∫ −4x3 dx = −x4
  2. ∫ −2 dx = −2x
  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 ∫ (−6x + 2) dx

Answer: −3x2 + 2x + C

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

Answer: −3x4 + 2x3 + C

  1. ∫ −12x3 dx = −3x4
  2. ∫ 6x2 dx = 2x3
  3. Don't forget the constant of integration, C
10.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
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