Express 4(tan^2) - 4(sec^2) as an integer

I need help! Ten points for right answer! Thanks!

4(tan²x) - 4(sec²x)

= 4(tan²x - sec²x)

= 4(sin²x/cos²x - 1/cos²x)

= 4((sin²x - 1)/cos²x)

= 4((1 - cos²x - 1)/cos²x)

= 4(-cos²x/cos²x)

= 4(-1)

= -4

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4tan(t)^2 - 4sec(t)^2 =>
4 * (tan(t)^2 - sec(t)^2) =>
4 * (-1) =>
-4