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 :
![3x^3+21x^2+36x=0](https://tex.z-dn.net/?f=3x%5E3%2B21x%5E2%2B36x%3D0)
Taking 3x common.
![3x(x^2+7x+12)=0\\\\3x=0\ \text{and}\ (x^2+7x+12)=0](https://tex.z-dn.net/?f=3x%28x%5E2%2B7x%2B12%29%3D0%5C%5C%5C%5C3x%3D0%5C%20%5Ctext%7Band%7D%5C%20%28x%5E2%2B7x%2B12%29%3D0)
x = 3
![x^2+7x+12=0\\\\x^2+3x+4x+12=0\\\\x(x+3)+4(x+3)=0\\\\(x+4)(x+3)=0\\\\x=-4,-3](https://tex.z-dn.net/?f=x%5E2%2B7x%2B12%3D0%5C%5C%5C%5Cx%5E2%2B3x%2B4x%2B12%3D0%5C%5C%5C%5Cx%28x%2B3%29%2B4%28x%2B3%29%3D0%5C%5C%5C%5C%28x%2B4%29%28x%2B3%29%3D0%5C%5C%5C%5Cx%3D-4%2C-3)
Hence, the solution of the given quadratic equation are x = 0, -4 and -3.
52-13=39
39/52x100=75
The percent of markdown: 75%
Answer:
Volume = 21688.37 in.³
Step-by-step explanation:
Volume of a sphere : V=4/3πr³
4/3π17.3³ ≈ 21688.37025
hope this helps :D
Answer:
I think the answer is C.....
To get simplest form you make it the smallest fraction you can make it by dividing both sides by the same number until it's not possible anymore Hope that helped!