" 吴 "9-a^(2)+2ab-b^(2)

Verify the identity (a + b)^(2) -= a^(2) + 2ab + b^(2) geometrically by taking a = 5 units, b = 9 units

Factorise : 4a^(2)-12ab+9b^(2)+2a-3b

Factorize 9-a^2+2ab-b^2

If 9a^(2)-6ab+b^(2)=0 then find a:b

Factorles: 12a ^(2) b- 9ab^(2) + 6ab

If a-b= 0.9 and ab= 0.36 find: a^(2) -b^(2)

Simplify using following identiy: (a +- b) (a^(2) ab + b^(2)) = a^(3) +- b^(3) ((a)/(3)-3b) ((a^(2))/(9) + ab + 9b^(2))