state gov Kerala (കേരളം) PSC Divisional Accountant Test Series 2025 Quantitative Aptitude Algebra Polynomials
If (x2 - 1) is a factor of f(x) = ax4 + 2x3 - 3x2 + bx - 4, then the values of 'a' and 'b' respectively are
1
-1, 8
2
3, -3
3
7, -2
4
-4, -6