Question

(18 {x}^{4} + 21 {x}^{3} ) \div 3 {x}^{2} =(18x
4
+21x
3
)÷3x
2
=​

Answer 1

Step-by-step explanation:

x=0\text{, }y=0\text{, }z=3<br/>x=\frac{\sqrt[3]{3}\times 5^{\frac{2}{3}}}{15}\approx 0.281144222\text{, }y=\frac{7\sqrt[3]{3}\times 5^{\frac{2}{3}}}{5}\approx 5.904028657\text{, }z=3