Question

when 4 is subtracted from the square of a number the result is 3 times the number find the negative solution

Answer 1

Answer: -1

Explanation:

`x^(2) -4\\` = 3
`x`

`x^(2) -3x-4=0`

`x^(2) -x(4-1)-4=0\\x^(2) -4x+x-4=0\\(x+1)(x-4)=0\\x=-1 , x=4`

hence, -1 is the solution