SOLUTION: x^2+6x-16=0

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Question 607153: x^2+6x-16=0
Found 3 solutions by ewatrrr, unlockmath, MathLover1:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

x^2+6x-16=0

***Factoring

(x+8)(x-2)= 0, Roots: x = -8 & x = 2

***checking the Factoring Using the FOIL method

F	First terms  x^2

O	Outside terms  -2x

I	Inside terms    8x

L	Last terms     -16

Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
We can find the values of x by factoring this: x^2+6x-16=0
(x+8)(x-2)=0
Solve for x:
x=2
x=-8
Make sense?
RJ
www.math-unlock.com

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

x%5E2%2B6x-16=0.......we can write 6x as 8x-2x
x%5E2%2B8x-2x-16=0...now we can group first two and second two terms together
%28x%5E2%2B8x%29%2B%28-2x-16%29=0.......now, we want that minus sign to be in front of parentheses
%28x%5E2%2B8x%29-%282x%2B16%29=0.....now, we are looking for common factors in both of the groups: in first group it is x, and in second group it is 2....
x%28x%2B8%29-2%28x%2B8%29=0....now, we have common factor x%2B8
%28x%2B8%29%28x-2%29=0...these are simple factors of your equation, and solutions will be:

x%2B8=0....->...x=-8
x-2=0....->...x=2