Question

simplify:p(p-q)+q(q-p​

Answer 1

Answer:

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Answer 2

P-p+q-q-q+p= p-p+p +q-q-q= p-q.

p-p+q-q-q+p= p-p+p +q-q-q= p-q More

Hi ,p - ( p - q ) - q - ( q - p )= p - p + q - q - q + p= p - p + p + q - q - q = p - qI hope .