Question

If x = 3/2, then the value of 27x3 - 54x2 + 36x - 11 is​

Answer 1

Answer:

Now, 27x 3 −54x 2

+36x−11 can be written as

(3x) 3 −(2) 3

−3×3x×2(3x−2)−3

=(3x−2) 3 −3(1)

Putting x= 23 in eq. (1)

=(3× 2/3 −2) 3 −3= 8/125 −3= 8/101

​ =128/5.