" 13) "((2a)/(3b)+(2b)/(3a))^(2)

Write the following squares of binomials as trinomials: ((3a)/(2)-(5b)/(4))^(2) (ii) (a^(2)b-bc^(2))^(2)((2a)/(3b)+(2b)/(3a))^(2) (iv) (x^(2)-ay)^(2)

Write the following squares of binomials as trinomials: ((3a)/2-(5b)/4)^2 (ii) (a^2b-b c^2)^2 ((2a)/(3b)+(2b)/(3a))^2\ (iv) (x^2-a y)^2

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

If (a ^(2) + b ^(2)) ^(3) = (a ^(3) + b ^(3)) ^(2) and ab ne 0, then ((a)/(b) + (b)/(a)) ^(6) is equal to

(2a+3b)(a-b)=2a^(2)-3b^(2)

Factorize: 4(x+y)^(2)-28y(x+y)+49y^(2)(2a+3b)^(2)+2(2a+3b)(2a-3b)+(2a-3b)^(2)