17. What is the solution to the integral f x(x + 1)dx? x4 (A)-+x + C...

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17. What is the solution to the integral f x(x² + 1)dx? x4 (A)-+x + C (B) + x4 + (D) x* + x2 + C 18. What is the solution to the following set of simultaneous linear equations? 10x + 3y + 10z = 26 8x – 2y + 9z = 11 8х + у — 10z 3D 36 %3| | (A)x = 1, y = 2, z = 3 (B)x = -1,y = 3,z = 2.7 (C)x = 3.2, y = 2, z = -1.2 (D)x = 3, y = 2, z = -1 %3D 17. What is the solution to the integral f x(x² + 1)dx? x4 (A)-+x + C (B) + x4 + (D) x* + x2 + C 18. What is the solution to the following set of simultaneous linear equations? 10x + 3y + 10z = 26 8x – 2y + 9z = 11 8х + у — 10z 3D 36 %3| | (A)x = 1, y = 2, z = 3 (B)x = -1,y = 3,z = 2.7 (C)x = 3.2, y = 2, z = -1.2 (D)x = 3, y = 2, z = -1 %3D