How do you factor and solve #x^2+x-20=0 #?
The solutions are
We can Split the Middle Term of this expression to factorise it.
In this technique, if we have to factorise an expression like
After trying out a few numbers we get
We equate both factors to zero and obtain the solutions:
#x-4 = 0 , x = 4# #x+5 = 0, x=-5#