Question

find the value of the polynomial 4 x square - 5 x + 3 when X is equals to 1 by 2

Answer 1

4(1/2)square-5(1/2)+3
4/4-5/2+3
1-5/2+3 taking lcm
2-5+6/2
3/2

Answer 2

The value of the polynomial is 3/2.
Given:

Polynomial: 4 x square - 5 x + 3

x= 1/2

To find:

The value of the polynomial

Solution:

The polynomial=p(x)

p(x)=4$x^{2}$-5x+3

Now, we are given the value of x that we will substitute in the given polynomial to obtain its value.

x=1/2

So, p(1/2)=4×$(1/2)^{2}$-5×1/2+3

p(1/2)=4×1/4-5/2+3

p(1/2)=1-2.5+3

p(1/2)=4-2.5

p(1/2)=1.5

p(1/2)=15/10

p(1/2)=3/2

Therefore, the value of the polynomial is 3/2.