Question

If 25x² - 49y² has one factor (5x - 7y), then the other factor is ______(a) 7x + 5y
(b) -7x - 5y
(c) 5x + 7y
(d) -5x + 7y

Answer 1

The other factor is: (c) 5x + 7y.

Algebraic Identity: (a+b) (a-b) = a^2 - b^2.

Answer 2

answer will be c option because

a² - b² = ( a + b ) ( a - b )

$\sqrt{25x {}^{2} } = 5x\\ \sqrt{49y {}^{2} } = 7y$

= ( 5x+ 7y ) (5x - 7y )

please mark the answer as brainliest