Question

Factorise it ples....... By step

Answer 1

Let ( 3x + y ) = a

5a^2 + 6a - 8

=> 5a^2 + ( 10 - 4 ) a - 8

=> 5a^ 2 + 10a - 4a - 8

=> 5a( a + 2 ) - 4( a + 2 )

=> ( 5a - 4 )( a + 2 )

Putting the value of ( a )

=> ( 5a - 4 )( a + 2 )

=> [ 5( 3x + y ) - 4 ] [ 3x + y + 2 ]

=> [ 15x + 5y - 4 ] [ 3x + y + 2 ]