If s(x) = 2 - x2 and t(x) = 3x, which value is equivalent to (st)(-7)
1 answer:
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For any equation,
assume solution of a form,
Which leads to,
Simplify to,
Then find solutions,
For non repeated real root y, we have a form of,
Following up,
For two non repeated complex roots where,
and,
the general solution has a form of,
Or in this case,
Now we just refine and get,
Hope this helps.
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