Question

use suitaable identity and find the product ( 7x - 5 ) ( 7x + )

Answer 1

hi there.!!
here is ur answer..
(7x-5)(7x+5)
indentity used
(a-b)(a+b) = a^2 - b^2

therefore
(7x)^2 - (5 )^2
40x^ - 25
hope helped

Answer 2

Step-by-step explanation:

first step:- (7x+5) or (7x-5)

and then. 7x(7x-5) +5(7x-5)

then 49x^2 - 35x + 35x - 25

final ans 49x^2 - 25

I hope this one is helps you