(i) 2x2 – x – 6
(ii) 1 – 18y – 63y2
Answer :
(i) 2x2 – x – 6
2x2 – 4x + 3x – 6
Take out common in all terms we get,
2x(x – 2) + 3(x – 2)
(x – 2) (2x + 3)
(ii) 1 – 18y – 63y2
1 – 18y – 63y2
1 – 21y + 3y – 63y2
Take out common in all terms we get,
1(1 – 21y) + 3y(1 – 21y)
(1 – 21y) (1 + 3y)