Question

factorise 2(x+y)² - 9(x+y)-5

Answer 1

Hi ,

2(x + y )² - 9( x + y ) - 5

= 2( x + y )² - 10(x + y ) + ( x + y ) - 5

= 2(x + y )[ ( x + y ) - 5 ]+ 1[ (x + y ) - 5 ]

= ( x + y - 5 ) [ 2(x + y ) + 1 ]

= ( x + y - 5 )( 2x + 2y + 1 )

I hope this helps you.

: )

Answer 2

Hi,

Please see the attached file !


Thanks