Question

simply and find the value of the following expression for p=-2 and q=1. 7pq* 2psquare-3pqsquare+6pq*-p+q​

Answer 1

p=-2 & q=1

$7pq \times 2 {p}^{2} - 3 p{q}^{2} + 6pq \times - p + q$

$= 7( - 2)(1) \times 2 {( - 2)}^{2} - 3( - 2) {(1)}^{2} + 6( - 2)(1) \times ( - ( - 2)) + (1)$

$= - 14 \times 8 + 6 - 12 \times 2 + 1$

$= -112 + 6 - 24 + 1$

$= - 129$