Question

Add :-l² + (-m²), m² + (-l²)​

Answer 1

Answer:

-2l²

Step-by-step explanation:

   -l² + (-m²)​= -l² -m²​ ------ [1]

    m² + (-l²)​=  m² -l²​------- [2]

Adding 1 and 2, we get,

-l²-l²-m²+m²= -2l²

 

   

Answer 2

As per data given in the question,

We have to find the value when -l² + (-m²) is added to the expression m² + (-l²)​

So, for finding the solution of given expression,

We will add both the expression,

We can rewrite the above expression as,

$-l^2 + (-m^2) + m^2 + (-l^2)\\-l^2 -m^2 + m^2 + -l^2\\-2l^2$

Hence, when -l² + (-m²) is added to the expression m² + (-l²)​ we will get the addition as $-2l^2$.