Question

Factorise the following trinomials = -3m-28+msquare

Answer 1

Answer:

(2+1

Step-by-step explanation:

To factorise: 2(m+2n)

2

+5(m+2n)+2

Now, let (m+2n)=x

So,

2(m+2n)

2

+5(m+2n)+2

=2x

2

+5x+2

=2x

2

+4x+x+2

=2x(x+2)+1(x+2)

=(2x+1)(x+2)

)

Putting the value of x

=[2(m+2n)+1][(m+2n)+2]

=(2m+4n+1)(m+2n+2)

Hence, factorised.