SOLUTION: Find the x-intercepts. f(x)= 2x+x(x-7)

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Find the x-intercepts. f(x)= 2x+x(x-7)      Log On


   



Question 1108886: Find the x-intercepts.
f(x)= 2x+x(x-7)

Found 2 solutions by josgarithmetic, stanbon:
Answer by josgarithmetic(39617) About Me  (Show Source):
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the x-intercepts.
f(x)= 2x+x(x-7)
-----
Let y = 0 and solve for "x"::
2x + x(x-7) = 0
-------
2x + x^2 - 7x = 0
------
x^2 - 5x = 0
--------------------
x(x-5) = 0
x = 0 or x = 5
-----
x-intercepts:: (0,0) and (5,0)
----
Cheers,
Stan H.
-------------