ElectricPavlov

The house APPreciates at 5.5 %

FV=PV(1+i)^n   =  123,700 (1.055)^13 = $ 248,114.23

Check !

I just did it in my head....but you can (again) use the Quadratic formula to fin the values of x

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

\(x = {-1 \pm \sqrt{1^2-4(1)(-2)} \over 2(1)}\)   x = -1/2 +- (sqrt9)/2  = -1/2+- 3/2  =  -2 or 1

so the roots are -2 or 1      x+2   or  x-1     so     (x+2)(x-1)=0   results in x=-2 or 1

START by dividing both sides of the equation by 200...you will then have

350/200 = .07^x    

1.75 = .07^x            take log of both sides to get

.243038 = x log(.07)

.243038/(log(.07) = x = - 0.21044

(x+2)(x-1)

You can use the Quadratic Formula of 'completing the squares ' method to solve this

I'll use quadratic formula:\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

x = (-3 +- sq rt( 9-16))/4     =  -3/4 +- sqrt(-7/16)   =  - 3/4 +- sqrt(7/16) i

.....This is the same answer for -3/4 x -12)

OOps...your decimal point is in the wrong place !    - 0.75

Here is a good explanation:

https://www.youtube.com/watch?v=QhDDpSju3uY

Generally any number divided by zero is 'undefined'   ...not allowed.   

DO not know why google calc does this.