What is expand (3tan^2(x)-1)(tan^2(x)-3) ?

The solution to expand (3tan^2(x)-1)(tan^2(x)-3) is 3tan^4(x)-10tan^2(x)+3

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expand (3tan^2(x)-1)(tan^2(x)-3)

expand

(3 tan^{2} (x) - 1) (tan^{2} (x) - 3)

3 tan^{4} (x) - 10 tan^{2} (x) + 3

Solution steps

(3 tan^{2} (x) - 1) (tan^{2} (x) - 3)

Apply FOIL method

(3 tan^{2} (x) - 1) (tan^{2} (x) - 3) : 3 tan^{4} (x) - 10 tan^{2} (x) + 3

= 3 tan^{4} (x) - 10 tan^{2} (x) + 3

(x - 2 i) (x + 2 i)

(x^{\frac{2}{3}} - 1)^{2}

cot (x) + cos (x) (tan (x) - tan (\frac{x}{2}))

(- 4 b + 2 x^{\frac{21}{5}}) (4 x^{3})

(x y^{2} - 4 x^{2} y^{3} + 5 x^{3} y + 4 x^{2}) l e f t (- 2 x^{3} y)

What is expand (3tan^2(x)-1)(tan^2(x)-3) ?
The solution to expand (3tan^2(x)-1)(tan^2(x)-3) is 3tan^4(x)-10tan^2(x)+3