2010 · Q65
If the expressions px³ + 3x² – 3 and 2x³ – 5x + p when divided by x – 4 leave the same remainder, then what is the value of p ?
Elementary MathematicsAlgebra
- A-1
- B1
- C-2
- D2
Explanation
Equating remainders at x=4: 64p+45=108+p, so p=1.
If the expressions px³ + 3x² – 3 and 2x³ – 5x + p when divided by x – 4 leave the same remainder, then what is the value of p ?
Explanation
Equating remainders at x=4: 64p+45=108+p, so p=1.