What is factor x^2-2x-3 ?

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

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factor x^2-2x-3

factor

x^{2} - 2 x - 3

(x + 1) (x - 3)

Solution steps

x^{2} - 2 x - 3

Break the expression into groups

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

Factor out

x

from

x^{2} + x : x (x + 1)

Factor out

- 3

from

- 3 x - 3 : - 3 (x + 1)

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

Factor out common term

x + 1

= (x + 1) (x - 3)

- 4 \cdot \frac{1}{2}

(x - 3) (x - 3)

1700

\frac{1}{\frac{0.55}{228} + \frac{0.45}{3.8}}

2 x^{2} = 3 x - 1