SOLUTION: b^4+13b^2+36=0

Question 80885This question is from textbook algebra
: b^4+13b^2+36=0 This question is from textbook algebra

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve for b?
Let's temporarily swap variables: so then Now rewrite the equation:
Solve for x by factoring.
Apply the zero products principle:
and/or
If then
If then
Now replace the x with
For we get:
Take the square root of both sides.
or
or
or
For we get:
Take the square root of both sides.
or
or
or
So the four solutions are:

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