My name is Brian R. I am in secondary. I need to find the root of the quadratic equation of a square. The problem is x2 + 22x + 112 = 0 can you help?
If you can factor x2 + 22x + 112 then finding a root is easy. To factor x2 + 22x + 112 as (x + a)(x + b) you need to find numbers a and b so that a + b = 22 and a * b = 112 (* is multiplication).
I would start by writing all the factors of 112, that is
Now find the row above where the sum of the factors is 22.Cheers,