Question

How do you solve
(x^2 +3)^2 - (x^2 +3) - 7=0

Answer 1

Substitute (x²+3) for p:

p²-p-7=0

Answer 2

I get these solutions for x:

x=
\[\sqrt{0.5(\sqrt{29}-5)}\]

or
x=
\[-\sqrt{0.5(\sqrt{29}-5)}\]