krojas015
15.03.2020 •
Mathematics
100 points! simplify write as a product compute
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Ответ:
a)
b)
c)
Step-by-step explanation:
We want to simplify
Let :
Square both sides of the equation:
Expand the RHS;
Compare coefficients on both sides:
Solve the equations simultaneously,
Solve the quadratic equation in b²
This implies that:
When b=-3,
Therefore
We want to rewrite as a product:
as a product:
We rearrange to get:
We factor to get:
Factor again to get;
We rewrite as difference of two squares:
We factor the difference of square further to get;
c) We want to compute:
Let the numerator,
Square both sides of the equation;
Compare coefficients in both equations;
and
Put equation (2) in (1) and solve;
When b=-1, a=-2
This means that:
This implies that:
Ответ:
Drake
Step-by-step explanation: