Simplify each expression using order of operations. (the one that’s circled)
1 answer:
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Since and
are roots of
, we can factorize the quadratic in terms of the roots as
Expanding the right side gives
so that
A polynomial with roots and
would be
and expanding this gives
Now,
and
So we can write the second quadratic in terms of as
and to make things look cleaner, scale the whole expression by to get