Teaching PSTET Paper 1 & 2 Mock Test 2024 Quantitative Aptitude Algebra Polynomials

If P = 2x2 - 3x + 5, Q = 4x2 + x - 2, R = -x2 - 4x + 7, and S = 3x2 - 2x - 1, then what is the sum of the coefficients of x2 and x in (P - Q + R - S)?

1
-12
2
0
3
14
4
-4
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