N^2-50n-600=0 how do it??

Solve for n:
n^2-50 n-600 = 0

 

The left hand side factors into a product with two terms:
(n-60) (n+10) = 0

 

Split into two equations:
n-60 = 0 or n+10 = 0

 

Add 60 to both sides:
n = 60 or n+10 = 0

 

Subtract 10 from both sides:
Answer: |  n = 60      or      n = -10

Or...

N^2-50n-600=0

 

Subtract 600 from -600 to get 0, 0+600=600.

 

N^2-50n=600

 

Plug in values for n, starting with 0.

 

n=60.

 

-10 also works.

 

-10x-10(-50x-10)=-10x-10+500=100+500=600

 

60x60-(-50x-60)=60x60-3000=3600-3000=600