Answer:
Step-by-step explanation:
Let [tex]m=x^2-5[/tex]
We want to express the equation [tex](x^2-5)^2-3x^2+15=-2[/tex] in terms of m.
Given: [tex](x^2-5)^2-3x^2+15=-2[/tex]
Factorizing the third and fourth term, we obtain:
[tex](x^2-5)^2-3(x^2-5)=-2[/tex]
Substituting [tex]m=x^2-5[/tex], the above equation becomes:
[tex]m^2-3m=-2[/tex]
Since the options are not given, the equivalent equation is:
[tex]m^2-3m=-2[/tex]
It could also be written in a rearranged form as:
[tex]m^2-3m+2=0[/tex]