Question

(7a+5b) (7a-5b) solve
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Answer 1

Answer:

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

(7a)^2-(5b)^2

49a^2-25b^2

Step-by-step explanation:

Answer 2

Answer:

( 7a+5b) × (7a- 5b)

using identity (a+b) ( a- b) = (a^2-b^2)

[7a^2 -5b^2]

49a^2-25b^2