Question

1)Simplify the following expression and find its value when p = 3, q = - 3; 4(p2 – pq + q2 ) – 5 + 9pq – 2q2​

Answer 1

Answer:

4p^2-4pq+4q^2-5+9pq-2q^2

=4p^2-5pq+2q^2-5

p=3, q=-3

=4(3) ^2-5(3) (-3)+2(-3) ^2-5

=36+45+18-5

=94