What is factor x^4-2x^2-16x-15 ?

The solution to factor x^4-2x^2-16x-15 is (x+1)(x-3)(x^2+2x+5)

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factor x^4-2x^2-16x-15

factor

x^{4} - 2 x^{2} - 16 x - 15

(x + 1) (x - 3) (x^{2} + 2 x + 5)

Solution steps

x^{4} - 2 x^{2} - 16 x - 15

Use the rational root theorem

= (x + 1) \frac{x ^{4} - 2 x ^{2} - 16 x - 15}{x + 1}

\frac{x ^{4} - 2 x ^{2} - 16 x - 15}{x + 1} = x^{3} - x^{2} - x - 15

= (x + 1) (x^{3} - x^{2} - x - 15)

Factor

x^{3} - x^{2} - x - 15 : (x - 3) (x^{2} + 2 x + 5)

= (x + 1) (x - 3) (x^{2} + 2 x + 5)

- 1 \cdot (- 4)

(2 x y^{- 2} \cdot 2 y^{2})^{3}

- x 90 x^{5} - x^{2} 10 x^{3}

(- 2 + 2 i) \cdot (5 + 5 i)

8 + x^{6}

What is factor x^4-2x^2-16x-15 ?
The solution to factor x^4-2x^2-16x-15 is (x+1)(x-3)(x^2+2x+5)