Answer:
x = 0, -4 and -3.
Step-by-step explanation:
The given expression is "3x to the power of 3 + 21x squared + 36x = 0".
We can write this expression as follows :

Taking 3x common.

x = 3

Hence, the solution of the given quadratic equation are x = 0, -4 and -3.
Answer:
I dont know.. sorry.......
13/3= 4.25 because.....
13-12 is 1.
SO:
When you have your problem set up, you have 4, and then a 1 left over. You turn it into a fraction.
Make 4 and 1/4, then put it as a mixed number, 4 1/4
or you can keep dividing by adding a decimal then zeroes and keep solving until you get 4.25 which is equivalent to 4 1/4
Answer:
when u multiple it it us 100 but when I added it was 21
so it is 100 or 21 sorry if it is not right