What is factor x^3-3x^2-7x+21 ?

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

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factor x^3-3x^2-7x+21

factor

x^{3} - 3 x^{2} - 7 x + 21

(x - 3) (x^{2} - 7)

Solution steps

x^{3} - 3 x^{2} - 7 x + 21

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

Factor out

x^{2}

from

x^{3} - 3 x^{2} : x^{2} (x - 3)

Factor out

- 7

from

- 7 x + 21 : - 7 (x - 3)

= x^{2} (x - 3) - 7 (x - 3)

Factor out common term

x - 3

= (x - 3) (x^{2} - 7)

4 (2 m - 6) - 3 p - 2 m + 8

b^{9}

2 \frac{4}{5} \div 4

\frac{1}{2} \times 20

\frac{1}{2} \times 25

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