Question

4 times a number is 5 less than the square

of that number. Find the negative solution.

Answer 1

Answer:

The negative solution is -1

Explanation:

Let the number is x.

According to the question:  

4 times of x will be 4x  

1. 5 less of the square of that number will be x² -5

Therefore,

4x = x² – 5  

Make this equation in the form of a quadratic equation

x² - 4x -5 = 0    

(x - 5) (x + 1) = 0,    

 The value of x = 5, and x = -1  

The negative value of x of two solutions is -1.

Answer 2

Answer:

-1

Explanation: I got it right