Question

7. Factorise (i) x3 - 2x2 - x+2
(iii) x3 + 13x2 + 32x + 20
(ii) x2 – 3x2 - 9x – 5
(iv) y3 + y2-y-1
3​

Answer 1

Answer:

x^3+1

Step-by-step explanation:

x^3-2x^2-x+2

x^3 -1x^2-1x^2+2

x^3-1(1-x)+1(1-x)+2

x^3-1+2

=x^3+1

Answer 2

Answer:

which is the value 'x' and which is multiplication sign 'x' mate? Make the value as X, so it can be easy to solve.