Answer:
2^3.3^2
Step-by-step explanation:

We must graph y=x^3-9x^2+11x+21. Please, see the attached file.
Then we see were the graph cuts the x-axis, and these values of x are the real solutions of the given equation:
The real solutions of the given equation are:x = -1, 3, and 7
You do the square root of 75
and then with that number you divide it by 5
and that is your answer
Answer:
Y=-2/3x+0
This is the answer I found