Question

If x= 1/2-√3 then evaluate x^2-4x+9 class 9 (please full explain).​​

Answer 1

Answer:

After putting x=2 in equation, we get −1.

After putting x=−1, we get 8

After putting x=

2

1

, we get

4

5

So, p(2)−p(−1)+p(

2

1

)=−1−8+

4

5

=−9+

4

5

=

4

−36+5

=

4

−31