Question

if m=-2 then find the value m^2-4

​

Answer 1

Answer:

The value of $m^2-4$will be 0.

Step-by-step explanation:

Given: The value of 'm' is -2.

We have to find thevalue of $m^2-4$.

We are solving in the following way:

We have,

The value of 'm' is -2.

Now, we will put the value of 'm' in the given expression.

Then we will simplify the expression.

$m^2-4$

$=>(-2)^2-4\\=>4-4\\=>0$

So,

The value of $m^2-4$ is 0.

Answer 2

Answer:

We will get the value is -8.

Step-by-step explanation:

   Given data:- $m=-2.$

   To find:- Value of $m^2-4.$

   Solution:-

• To solve the above question we will follow the BODMAS rule.

• BODMAS is a order of mathematic operations.

• It stands for,

           B= bracket

           O= order of power or rules

           D= division

           M= multiplication

           A= addition

           S= subtraction

   Now put the value of m=-2 and in the given data we get,

             $m^2-4\\=>(-2)^2-4\\=>-4-4\\=>-8$