How do you solve #-16x^2 - 144x – 320 = 0#?
1 Answer
Jun 25, 2015
x= -5, -4
Explanation:
Divide the equation by -16 to get
Now split the middle term as
x(x+5) +4(x+5)=0
(x+5)(x+4)=0
x= -5, -4
