Question

if x+1/x =3/2 , then the value of 8x³+1/8x³ wil be​

Answer 1

Step-by-step explanation:

cross multiply

X+1 (2) = X (3)

2X + 2 = 3X

2 = 3X - 2X

2 = X

Then put the value of x in the given equation

i.e x = 2

Answer 2

Answer:

$\frac{x + 1}{x} = \frac{3}{2}$

$x + 1 = \frac{3x}{2}$

$\frac{3x}{2} - x = 1$

$\frac{3x - 2x}{2} = 1$

$\frac{x}{2} = 1$

$\huge \boxed{ x= 2}$

${8(2)}^{3} + \frac{1}{8 {(2)}^{3} }$

$= 8(8) + \frac{1}{8(8)}$

$= 64 + \frac{1}{64}$

$= \frac{4096 + 1}{64}$

$\huge \boxed{ \frac{4097}{64} }$

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