Question

find the value of polynomial 4x^2-5x+9 , when x=1÷2

Answer 1

Hope this helps you....

Answer 2

Given: The given polynomial is $4x^2-5x+9$ and the value of x is 1/2.

To find: We have to find the value of the polynomial.

Solution:

To determine the value of the polynomial we have to follow the below steps-

The given polynomial is $4x^2-5x+9$.

The given value of x is 1/2.

Putting the value of x that is 1/2 in the above polynomial we get-

$4 \times { \frac{1}{2} }^{2} - 5 \times \frac{1}{2} + 9 \\ 4 \times \frac{1}{4} - \frac{5}{2} + 9 \\ 1 - \frac{5}{2} + 9 \\ 10 - \frac{5}{2} \\ \frac{20 - 5}{2} \\ = \frac{15}{2}$

The result is 15/2.

So, the value of the above polynomial is 15/2.