Question

actorise :
12r-7x+1factorise x cube minus 2 x square minus x + 2 ​

Answer 1

Step-by-step explanation:

Let x = 1

Then,

(1)³ - 2(1)² - (1) + 2

1 - 2 - 1 + 2 = 0

x= 1

x-1= 0

divide x³ - 2x - x + 2 by x - 1

= x² + 3x - 2

then factorise by general form