Question

find the product of ( 2 upon 5 a b + c ) (2 upon 5 a b - C )​

Answer 1

Answer:

4/25a^2 b^2 - c^2

Step-by-step explanation:

(2/5ab+c) (2/5ab-c)

= 4/(5ab+c)(5ab-c)

= 4/(5ab)^2 - (c)^2

(since,(a+b)(a-b)=a^2 - b^2)

= 4/25a^2 b^2 - c^2

Answer 2

Answer:

4/25 a ka square b ka square - c ka square

Step-by-step explanation:

(2/5 ab+ c)(2/5ab-c)

since:a^-b^

2/5ab^-c^

4/25a^b^-c^ ans