14. Given that X 1 and X2 are two real roots of the equation X 2+3x+ 1 = 0, then x 1, x2+8X2+20 =.

Note: X 2 stands for the square of X.

Calculate x 1, x2 with the root formula, and then bring it into the demand formula, and the result is-1.

You can do the math yourself.