Question

x^2-2x-3

Answer 1

x² - 2x - 3

= x² - 3x + x - 3

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

= (x + 1)(x - 3)

Answer 2

`=(x^2-2x+1)-4`

`=(x-1)^2-2^2`

`=(x-1+2)(x-1-2)`

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

Answer 3

\(=\left(x-3\right)\left(x+1\right)\)

Answer 4

x²+x-3x-3=x(x+1)-3(x+1)=(x+1)(x-3)