How do you solve 22xx2=96?

2 Answers
Mar 15, 2018

x=16or6

Explanation:

22xx2=96

x2+22x96=0

x222x+96=0

(x16)(x6)=0

Hence, x=16or6

Mar 15, 2018

x=6and16

Explanation:

So first we want to get the x2 to be positive. To do this we have to multiply both sides by a (1).
(1)[22xx2=96]

Giving us
22x+x2=96

Now we can get all numbers to one side of the equation making it equal to 0.
x222x+96=0

Now we can factor. Since 166=96
We can now write x222x+96

As
(x16)(x6)=0

Setting both to 0 gives us
x16=0 and x6=0

Which gives us
x=16 and x=6