Question

- Find the value of
2x²+y³ for x=-1/3 and y=-2/3.​

Answer 1

Step-by-step explanation:

2x²+y³

x= -1/3

y= -2/3

2( -1/3)²+(-2/3)³

2(1/9)+ (8/27)

18/2 + 8/27

9+ 8/27

251 /27

the value of 2x² + y³ = 251/27= 9.2962......

if it is wrong forgive me......

Answer 2

Answer:

$\frac{-2}{27}$

Step-by-step explanation:

$Given: x=\frac{-1}{3} ,y=\frac{-2}{3} \\To Find: 2x^{2} + y^{3} \\Solution:2*(\frac{-1}{3})^{2} +( \frac{-2}{3} )^{2} \\= 2*\frac{1}{9} + \frac{-8}{27}\\ LCM=27\\=\frac{6\\+(-8)}{27}\\=\frac{-2}{27}\\=-0.740$

Hope it helps buddy!!☺️☺️