Question

factorise 3a2+11ab+6b2

Answer 1

3a²+11ab+6b²=0

3a²+9ab+2ab+6b²=0

3a(a+3b)+2b(a+3b)=0

(3a+2b)(a+3b)=0

Answer 2

3a² + 11ab + 6b²

= 11ab (3a +1 ) ( 3b + 1 )

= (3a+1) (3b+1)