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Which expression is equivalent to (7+85-2r²) + (-42²-10+2)

Which expression is equivalent to (7+85-2r²) + (-42²-10+2)
asked 92.7k views
20 votes
Which expression is
equivalent to
(7+85-2r²) + (-42²-10+2)

asked
User Fernando Barrocal
by
8.5k points

1 Answer

13 votes

Answer:

-2 (r^2 + 840)

-2 (2 sqrt(210) - i r) (2 sqrt(210) + i r)

Explanation:

answered
User Jairon
by
7.0k points
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