Question

14

6.66 points
Identify the factors of 9x² + 49y²
(3x + 7y)(3x - 7y)
O prime
(3x-7y)(3x - 7y)
O (3x + 7y)f3x + 7y)

Answer 1

Explanation:

Hi ,

9x² - 49y² + 3x + 7y

= [ (3x)² - ( 7y )² ] + ( 3x + 7y )

= ( 3x + 7y ) ( 3x - 7y ) + 1( 3x + 7y )

= ( 3x + 7y ) ( 3x - 7y + 1 )

I hope this helps you.

:)