What is factor x^3+3x^2-25x+21 ?

The solution to factor x^3+3x^2-25x+21 is (x-1)(x-3)(x+7)

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factor x^3+3x^2-25x+21

factor

x^{3} + 3 x^{2} - 25 x + 21

(x - 1) (x - 3) (x + 7)

Solution steps

x^{3} + 3 x^{2} - 25 x + 21

Use the rational root theorem

= (x - 1) \frac{x ^{3} + 3 x ^{2} - 25 x + 21}{x - 1}

\frac{x ^{3} + 3 x ^{2} - 25 x + 21}{x - 1} = x^{2} + 4 x - 21

= (x - 1) (x^{2} + 4 x - 21)

Factor

x^{2} + 4 x - 21 : (x - 3) (x + 7)

= (x - 1) (x - 3) (x + 7)

2 (2 x + 5)^{2} - 28 = 22

\frac{2 a}{a - 3} - \frac{2 a}{a + 3} + \frac{36}{a ^{2} - 9}

4 x^{2} - 28 x + 24

9 x^{4} + 24 x^{2} + 16

\frac{16 !}{10 !}

What is factor x^3+3x^2-25x+21 ?
The solution to factor x^3+3x^2-25x+21 is (x-1)(x-3)(x+7)