Question

If 2x -1/2x = 5, find the value of 8x³ - 1/8x³

Answer 1

Step-by-step explanation:

$(2x - 1/2x)³ = (5)³$

$8x³ - 1/8x³ - 3(5) = 125$

$8x³ - 1/8x³ - 15 = 125$

$8x³ - 1/8x³ = 125 + 15$

$8x³ - 1/8x³ = 140$

Answer is 140......

Answer 2

Step-by-step explanation:

Refer to the attachment....

Hope it helps you..