Question

find the value:



plz tell me the answer of this question, please​

Answer 1

x = 1 - √2

(x - 1/2)³

= [(2x - 1)/2]³

= [(2(1 - √2) - 1)/2]³

= [(2 - 2√2 - 1)/2]³

= [(1 - 2√2)/2]³

= (1 - 2√2)³ / 8

From (a - b)³ = a³ - b³ - 3ab(a - b)

= [1³ - (2√2)³ - (3 × 1 × 2√2)(1 - 2√2)]/8

= [1 - 16√2 - 6√2(1 - 2√2)]/8

= [1 - 16√2 - 6√2 + 24]/8

= [25 - 22√2]/8

Answer 2

Pls mark as brainliest answer