Question

if 3x - 1/2x = 6 then the value of 9x^2 + 1/4x^2 is equals to ??​ pls help

Answer 1

Question :- if 3x - 1/2x = 6 then the value of 9x^2 + 1/4x^2 is equals to ??

Solution :-

→ 3x - 1/2x = 6

squaring both sides we get,

→ (3x - 1/2x)² = (6)²

using (a - b)² = a² + b² - 2ab in LHS, we get,

→ (3x)² + (1/2x)² - 2 * 3x * (1/2x) = 36

→ 9x² + (1/4x²) - 3 = 36

→ 9x² + (1/4x²) = 36 + 3

→ 9x² + (1/4x²) = 39 (Ans.)

Answer 2

Answer:

i too have the same doubt