simplify (p+q)(p-q)+(q+r)(q-r)+(r+p)(r-p)
Answers
Answered by
2
Answer:
There isn't much to simplify, but you can get rid of the brackets:
=
p
2
−
p
q
+
q
2
−
q
r
+
r
2
−
p
r
And maybe re-arrange:
p
2
+
q
2
+
r
2
−
p
q
−
p
r
−
q
r
Similar questions