Question

If 2x + 1/3x= 5 then 4x² + 1/9x²=​

Answer 1

Answer:

2x+1/3x=5

6/3x+1/3x=5

7/3x=5

7x=5×3

7x=15

x=15/7

x=2.14

4x^2+1/9x2=

4(2.14)^2+1/9(2.14)^2=

4(4.57)+1/9(4.57)=

18.31+0.50=

18.81