simplify ( p + q + r ) ( p - q + r ) + pq-qr
Answers
Answered by
2
Answer:
(pq−qr+pr)(pq+qr)−(pr+pq)(p+q−r)
=[p
2
q
2
+pq
2
r−pq
2
r−q
2
r
2
+p
2
qr+pqr
2
]−[p
2
r+pqr−pr
2
+p
2
q+pq
2
−pqr]
=p
2
q
2
+pq
2
r−pq
2
r−q
2
r
2
+p
2
qr+pqr
2
−p
2
r−pqr+pr
2
−p
2
q−pq
2
+pqr
=p
2
q
2
−q
2
r
2
+p
2
qr+pqr
2
−p
2
r+pr
2
−p
2
q−pq
2
Step-by-step explanation:
Answered by
2
Answer:
42
Step-by-step explanation:
The answer to life, the universe, and everything is 42. Because it is the answer to everything, it will obviously be the answer to this.
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