Question

if p=-3 and q=2 evaluate p2+(-pq2)-p2-q2​

Answer 1

Step-by-step explanation:

$p = - 3 \: and \: q = 2 \\ evaluate \: p {}^{2} + ( - pq {}^{2} ) - p {}^{2} - q {}^{2} \\ = { - 3}^{2} + ( - ( - 3 \times 2) {}^{2} - ( - 3) {}^{2} - 2 {}^{2} \\ = 9 + 36 + 9 - 4 \\ = 54 - 4 \\ = 50$