pls tell me the answer
Attachments:
Answers
Answered by
0
Answer:ans
Ques not proper
Step-by-step explanation:
Answered by
1
Answer:
Step-by-step explanation:
9 x² - y² + 4 y - 4
==> ( 3 x)² - ( y² + 2.y.2 + 2² )
==> ( 3 x)² - ( y - 2 )² [ ( a + b )² = a² + 2 ab + b² ]
==> ( 3 x - ( y - 2 ) ) ( 3 x + ( y - 2 ) ) [ ( a + b )( a - b ) = a² - b² ]
==> ( 3 x - y + 2 )( 3 x + y - 2 )
This is the answer
Hope it helps :-)
Similar questions