Question 32795
(X-1)(X^2+2x-6)

Here you must know how we make factors i.e. splitting of the middle term...(if you might not knew then contact me again and I will explain to you)...we get 

= (X-1) [ X^2 + (3-2)x - 6]

= (X-1) [ X^2 + 3x -2x- 6]

Taking common from first two i.e. X^2 + 3x and last two i.e. -2x- 6 variables...we get 

= (X-1) [ x(x+3) -2(x+3)]


=(X-1) [ (x+3) (x-2)]

now values of x are 1, -3, 2 ........ 

Hope this will help you 

Please feel free to revert back for any further queries.