SOLUTION: f(x)=x squared +6x Please explain, I don't get these.

Question 70925: f(x)=x squared +6x Please explain, I don't get these.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
f(x)=x squared +6x Please explain, I don't get these.
:
y = f(x)
:
y = x^2 + 6x
:
To solve for x let y = 0 and you have:
x^2 + 6x = 0
:
Factor out the x and you have:
x(x + 6) = 0
:
Set both factors to = 0, we will get two solutions
x = 0; is the 1st solution
:
(x + 6); = 0
x = -6; subtracted 6 from both sides, th
:
The two solutions are x = 0 and x = -6
:
Substitute either solution into x^2 + 6x = 0; the equation is true
:
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