Teaching DSSSB TGT Mock Test 2025 Quantitative Aptitude Algebra Quadratic Equation

If -5 is a root of the quadratic equation 2x2 + px - 15 = 0 and also of the quadratic equation p(kx2 + x) = 0, then what are the values of p and k?

1
7, 0.2
2
-7, 0.4
3
7, -0.2
4
-7, -0.2
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