Question

If a and b are the roots of x² – px + q = 0, then a² + b² is ________.​

Answer 1

Answer:

Given ,

quadratic equation is x2−px+q=0

For the quadratic equation ax2+x+c=0,

the sum of the roots is a−b and product of the roots is ac

Here the roots of the given equation are aand b.

a2+b2=(a+b)2−2ab

=p2−2q

Step-by-step explanation:

I think

may be this answer help you

thank you