If-the-equations-x-2-ax-b-0-and-x-2-bx-a-0-have-a-common-root-then-the-numerical-value-of-a-b-is-

Question Number 87274 by unknown last updated on 03/Apr/20

If the equations x^{2} + a x + b = 0 and

x^{2} + b x + a = 0 have a common root,

then the numerical value of a + b is