" 31."9(2a-b)^(2)-4(2a-b)-13

Factorize : 9(2a-b)^2-4(2a-b)-13

Factorise: 4(2a - b+c) ^(2) - 9 ( a+b- c) ^(2)

If 4(a+2)^(2)-9a+2(2a^(2)-1)=4(b+2)^(2)-9b+2(2b^(2)-1)=15 where a,b in R and a>b then find the value of 8(a-b)

What is the HCF of a^(2)b^(4)+2a^(2)b^(2) and (ab)^(7)-4a^(2)b^(9) ?

Factorise : (1)/(4)(a+b)^(2) - (9)/(16)(2a - b)^(2) .

Fractorise: 9a^(2) -b ^(2)+4b-4

Verify identity (a + b)(a - b) -= a^(2) - b^(2) geometrically by taking a = 13 units, b = 9 units