Question

If p and q are the zeroes of a quadratic polynomial x2+5x+8 then the value of p2 + q2 is​

Answer 1

Step-by-step explanation:

$\alpha + \beta = \frac{ - b}{a}$

and

$\alpha \beta = \frac{c}{a}$

so

$p ^{2} + q ^{2} = (p + q)^{2} - 2pq$

= (-b/a)2 - 2 pq

= 25/4-16

= 25- 64 /4

= -39/4 hoped it help