Question 441085
For this problem I got this far...
x^2(x^2-43)+450=0
How would you factor this?
Write it:
x^4 - 43x^2 + 450 = 0
This will factor to
(x^2 - 18)(x^2 - 25) = 0
Four solutions
x^2 = 18
x = +/-{{{sqrt(18)}}}
x = +/-{{{3sqrt(2)}}}
and
x^2 = 25
x = +/-{{{sqrt(25)}}}
x = +/- 5
:
Check all solutions in the original equation