Question

use a suitable indentity to get each of the following products (2.1 m-1.4 n ) (2.1+1.4 n )​

Answer 1

Answer:

12n2-3m-8n

Explanation:

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Answer 2

answer;

4.41m square - 1.96n square

Explanation:

(a+b)(a-b)=a square - b square

a=2.1m

b= 1.4n

(2.1m)square -(1.4n) square

4.41m square - 1.96n square