Evaluate `((a)/(2b)+(2b)/(a))^(2)-((a)/(2b)-(2b)/(a))^(2)-4`.

Evaluate : (i) ((a)/(2b)+(2b)/(a))^(2)-((a)/(2b)-(2b)/(a))^(2)-4 (ii) (4a+3b)^(2)-(4a-3b)^(2)+48ab

Evaluate : (iii) ((a)/(2b ) + (2b )/( a) ) ( ( a)/( 2b ) - (2b)/( a))

Evaluate : (iii) (2a - b) ( 2a + b) (4a^2 + b^2)

If a!=(+-)b and a+b!=1 then find the value of x satisfying the equation (a^(4)-2a^(2)b^(2)+b^(4))^(x-1)=(a-b)^(2x)(a+b)^(-2)

If a+b+c=0 , find the value of (a^2)/((a^2-b c))+(b^2)/((b^2-c a))+(c^2)/((c^2-a b)) (a) 0 (b) 1 (c) 2 (d) 4

Evaluate : (ii) (2a - 5b) ( 2a + 5b) ( 4a^2 + 25b^2)

Evaluate : b^(2)y - 9b^(2)y + 2b^(2)y - 5b^(2)y

Evaluate a^2+ b(b+2)^2 if a=3,b=-2

If a+b-c=14 then find the value of 2b^(2)c^(2)+2c^(2)a^(2)+2a^(2)b^(2)-a^(4)-b^(4)-c^(4)