engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Quadratic Equations Common Roots
If (x + a) is a factor of both the quadratic polynomials x2 + px + q and x2 + lx + m, where p, q, l and m are constants, then which one of the following is correct?
1
a = (m - q)/(l - p)(l ≠ p)
2
a = (m + q)/(l + p)(l ≠ -p)
3
l = (m - q)/(a - p)(a ≠ p)
4
p = (m - q)/(a - l)(a ≠ l)