Question

Ifp=-2 , q =- 1 and r =3, find the values of
2p² -q2+ 3r2​

Answer 1

Answer:

1. 2*(-2)^2-(-1)^2+3*(3)^2
2. 2*4-1+3*9
3. 8-1+27
4. 35-1
5. 34 is the answer