Question

find the value find the value​

Answer 1

Answer:

18

Step-by-step explanation:

x+1/4x =3/2

multiplying by 2 both side

2x +1/2x=3

(2x+1/2x)³=3³

(2x)³+(1/2x)³ +3*2x*(1/2x)(2x+1/2x)=3³

8x³+1/8x³ +3(3)=27

8x³+1/8x³ +9=27

8x³+1/8x³=27-9

8x³+1/8x³=18