Question

Find the value of 3x square- 5x + 3 .at x = -2

Answer 1

The given equation =
$3 {x}^{2} - 5x + 3$
since , x = -2
Therefore , it satisfies the equation

$= 3 ( - 2)^{2} - 5( - 2) + 3$
$= 3 \times 4 + 10 + 3$
$= 12 + 10 + 3$
$= 25$

Answer 2

Answer:

=> 25

Step-by-step explanation:

Here it is given that

We have to find the value of the expression.

Given expression:

$3x^2-5x+3$

When $x=-2$

To find:- The value of the expression,

Now, by substituting the value of x as $-2$ in the expression:

As we have,

=> $3x^2-5x+3$

=> $3(-2)^2-5(-2)+3$

Simplifying it further we get,

$=>3\times 4+10+3$

=> 12 + 10 + 3

=> 25

Hence, the required solution is 25.