2019 · Q56
The quotient when x⁴ - x² + 7x + 5 is divided by (x + 2) is ax³ + bx² + cx + d. What are the values of a, b, c and d respectively?
Elementary MathematicsAlgebra
- A1, -2, 3, 1
- B-1, 2, 3, 1
- C1, -2, -3, -1
- D-1, 2, -3, -1
Explanation
Synthetic division by -2 on coefficients 1, 0, -1, 7, 5 gives quotient coefficients 1, -2, 3, 1, i.e. x^3-2x^2+3x+1.