Question 246726
x^2+6x+5=45
x^2+6x-40=0
What are the integer factors of 40?(40,1),(20,2), (10,4), (8,5)

Which factors of 40 are 6 apart? 4, 10
We want + 6 so +10-4
(x-4)(x+10)=0
x=4
x=-10
see below for quadratic formula
*[invoke quadratic "x", 1, 6, -40 ]