Hey there!
Let's set up an algebraic equation to represent this problem:
![x^2=20](https://tex.z-dn.net/?f=%20x%5E2%3D20%20)
In order to get rid of the squared, we need to take the square root of both sides, therefore, our answer is:
![x= \sqrt{20}](https://tex.z-dn.net/?f=%20x%3D%20%5Csqrt%7B20%7D%20%20)
Your answer is the square root of 20.
Hope this helps!
X^3-3x^2-22x+24
the first option is the answer
solution: (x + 4)(x - 1)(x -6) = (x^2 - x + 4x -4)(x - 6)
(x^2 + 3x -4)(x - 6) = x^3 -6x^2 + 3x^2 - 18x - 4x + 24 = x^3 - 3x^2 - 22x + 24
The answer is 40 because if you do simple division you will get that 800/20 is 40