Question

5) Factorise : a) 6x3 – 25x2 + 32x - 12 b) x3 – 6x2 + 11x - 6

Answer 1

Answer:

a) if x=2

6x3 – 25x2 + 32x - 12

6(2)³-25(2)²+32(2)-12

48-100+64-12=

48+64-100-12=

112-112= 0ans

b) x3 – 6x2 + 11x - 6

if x=1

(1)³-6(1)²+11(1)-6=

1--6+11-6=

1+11-6-6=

12-12=

0 ans