Suppose we want to factorise
x 2 + 7x + 12
We factorise it by splitting the middle term
x 2 + 7x + 12
= x 2 + 4x + 3x + 12
= x(x + 4) + 3(x + 4)
= (x + 3) (x + 4)
So, x 2 + 7x + 12 = (x + 3) (x + 4)
Last updated at Dec. 16, 2024 by Teachoo
Suppose we want to factorise
x 2 + 7x + 12
We factorise it by splitting the middle term
x 2 + 7x + 12
= x 2 + 4x + 3x + 12
= x(x + 4) + 3(x + 4)
= (x + 3) (x + 4)
So, x 2 + 7x + 12 = (x + 3) (x + 4)
About the Author
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo