Answer :
i hope this helps you
x^4-10x^2+24=0
x^2 -6
x^2 -4
(x^2-6)(x^2-4)=0
x^2-6=0 x^2=6 x=square root of 6
x^2-4=0 x^2=4 x=-2 or x=2
x^4-10x^2+24=0
x^2 -6
x^2 -4
(x^2-6)(x^2-4)=0
x^2-6=0 x^2=6 x=square root of 6
x^2-4=0 x^2=4 x=-2 or x=2