The difference of the square of a number and 5 is equal to 4 times that number. Find the negative solution.

Question

its a quadratic word problem that needs to be solved and the answer should be a negative solution also its asking to figure out the difference

 

 

 

Answer 1

Let n be the number.

 

n² - 5 = 4n.

 

Rewrite and solve:

 

n² - 4n - 5 = 0

 

(n - 5)(n + 1) = 0

 

n = 5, n = -1

 

The answer you need is -1. Any questions?