5x2 + 6xy + y2
= 5x2 + 5xy + xy + y2
= ( 5x2 + 5xy ) + ( xy + y2 )
= 5x( x + y ) + y( x + y )
= ( x + y )( 5x + y )
\(5x^2+6xy+y^2\)
\(=5x^2+5xy+xy+y^2\)
\(=5x\left(x+y\right)+y\left(x+y\right)\)
\(=\left(x+y\right)\left(5x+y\right)\)
5x2 + 6xy + y2
= ( 5x2 + 5xy ) + ( xy + y2 )
= 5x ( x + y ) + y ( x + y )
= ( 5x + y ) ( x + y )