Answer:
Theres no picture?
Step-by-step explanation:
The rule for expressing a radical as a rational exponent is as follows:
![\sqrt[n]{x^y} = x^ \frac{y}{n}](https://tex.z-dn.net/?f=%20%5Csqrt%5Bn%5D%7Bx%5Ey%7D%20%3D%20x%5E%20%5Cfrac%7By%7D%7Bn%7D%20)
So, to find
![\sqrt[3]{27x^2y^3z^4}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B27x%5E2y%5E3z%5E4%7D%20%20)
use that rule.
The cube root of 27 is 3, so the equation will start with 3.

Hope that helps!
Answer:
1. x=3,y=2
2.x=0,y=4
3.x=-3,y=6
4.x=6,y=0
Step-by-step explanation:
x=3, y=2
2(3)+3(2)=6+6=12
x=0, y=4
2(0)+3(4)=0+12=12
x=-3, y=6
2(-3)+3(6)=-6+18=12
x=6,y=0
2(6)+3(0)=12+0=12. Hope this helps!