Answer:
Explanation:
x2+14x+40
We can Split the Middle Term of this expression to factorise it.
In this technique, if we have to factorise an expression like ax2+bx+c, we need to think of 2 numbers such that:
N1⋅N2=a⋅c=1⋅40=40
and,
N1+N2=b=14
After trying out a few numbers we get N1=10 and N2=4
10⋅4=40, and 10+4=14
x2+14x+40=x2+10x+4x+40
=x(x+10)+4(x+10)
Here (x+10) is common to both terms.
So the factorised form is=(x+4)(x+10)
