Explanation:
let the unknown be x
24 - x^2 = 5x
-x^2 - 5x + 24 = 0
(x - 3)(x + 8) =0
x = 3 (or) x = -8
if u wanna check
if you wanna check
24 - (-8)^2 =5(-8)
24 - 64 = -40
-40 = -40
since you ask for negative solution
x= -8 is a NUMBER
the solution is 5times of a NUMBER = -8 × 5 = -40
hope I got it right^^,good luck!