Question

if x=2,then value of the polynomial 3x(4x-5)+3 will be :-​

Answer 1

SOLUTION

TO DETERMINE

If x =2 , then value of the polynomial 3x(4x-5)+3 will be

EVALUATION

Here the given polynomial is

$\sf{3x(4x - 5) + 3}$

Putting x = 2 we get

$\sf{ = (3 \times 2) \times \bigg[(4 \times 2) - 5 \bigg] + 3}$

$\sf{ = 6 \times \bigg[8 - 5 \bigg] + 3}$

$\sf{ =( 6 \times 3) + 3}$

$\sf{ =18 + 3}$

$\sf{ =21}$

FINAL ANSWER

For x =2 , the value of the polynomial

3x(4x-5) + 3 is 21

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. Write the degree of the polynomial :

4z3 – 3z5 + 2z4 + z + 1

https://brainly.in/question/7735375

2. Find the degree of 2020?

https://brainly.in/question/25939171

Answer 2

Given:

3x(4x-5)+3

To find:

if x=2, then the value of the polynomial 3x(4x-5)+3 will be?

Solution:

3x(4x-5)+3

Substitute the value of x=2 in the given polynomial.

$= > 3x(4x - 5) + 3$

$= > 3 \times 2((4 \times 2) - 5) + 3$

$= > 6(8 - 5) + 3$

$= > 6(3) + 3$

$= > 18 + 3$

$= > 21$

Hence, if x=2, then the value of the polynomial 3x(4x-5)+3 will be 21