Question

If P(X) = 2X2-X +5 then find the value p(3).​

Answer 1

Step-by-step explanation:

p(x)= 2x² -x +5

given that x= 3 so put the value of x as 3 in the equation

p(3) = 2(3²) - 3 + 5

= 2(9)-3+5

=18-3+5

= 20

Answer 2

The value of P(3) = 20

Given :

P(X) = 2X² - X + 5

To find :

The value of P(3)

Solution :

Step 1 of 2 :

Write down the given polynomial

Here the given polynomial is

P(X) = 2X² - X + 5

Step 2 of 2 :

Find the value of P(3)

The value of P(3) is obtained by putting X = 3 in the polynomial P(X) = 2X² - X + 5

Hence the required value

= P(3)

= 2 × (3²) - 3 + 5

= ( 2 × 9 ) - 3 + 5

= 18 - 3 + 5

= 20

Correct question : If P(X) = 2X² - X + 5 then find the value of P(3)

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