Find the real roots of
\[(x - 7)(x - 3)(x + 1)(x + 5) = 1680.\]
Question:
Find the real roots of
\[(x - 7)(x - 3)(x + 1)(x + 5) = 1680.\]
Answer:
Let's think step by step.

user
9,-7
Find the real roots of
\[(x - 7)(x - 3)(x + 1)(x + 5) = 1680.\]
train