Question

. If p = 1,9 = -1, find the value of:
(i) p2 + 92 (ii) p2 + pq + q?
(iii) p2 - q?​

Answer 1

Answer:

$p = 1 \\ 9 = - 1 \\ \\ p2 + 92 \\ (1 \times 2) + ( - 1) \times 2 \\ = 2 + ( - 2) \\ = 2 - 2 \\ = \boxed{ \bf{ \underline{ \underline{0}}}} \\ \\ p2 + pq + q \\ (1 \times 2) + (1)q + q \\ = 2 + q + q \\ = \boxed{ \bf{ \underline{ \underline{2 + 2q}}}} \\ \\ p2 - q \\ (1 \times 2) - q \\ =\boxed{ \bf{ \underline{ \underline{ 2 - q}}}}$