Answers

2016-07-31T18:52:54+08:00
You could use factoring on this one 
x^2 + 5x - 6 = 0
Think of two number which multiplies to -6 and adds up to 5
Those two numbers are 6 and -1
(x+6)(x-1)
x = -6
X = 1
You could actually use the quadratic formula but that would take a long time.
1 5 1