Question

M=2 n=4 calculate the value of (2m+n) (2m-n)

Answer 1

Answer:

(2m+n)(2m-n)

=4m2 -n2

Put the values of m and n

4(2)2 -(4)2

4(4) - 8

16-8

=8

Answer 2

Given,

m = 2, n = 4

To find,

The value of (2m+n) (2m-n).

Solution,

The value of (2m+n) (2m-n) will be 0.

We can easily solve this problem by following the given steps.

The value of m is 2 and n is 4.

Putting these values in the following expression:

(2m+n) (2m-n)

(2×2+4) (2×2-4)

(4+4)(4-4)

8(0)

0

Hence, the value of (2m+n) (2m-n) is 0.