[" 3.Frilliad "7470000" from "],[qquad [a(x+y)+b(x-y)=a^(2)-ab+b^(2)],[a(x+y)-b(x-y)=a^(2)+ab+b^(2)]]

Solve :a(x+y)+b(x-y)=a^(2)-ab+b^(2)a(x+y)-b(x-y)=a^(2)+ab+b^(2)

Solve : a(x+y)+b(x-y)=a^2-a b+b^2 , a(x+y)-b(x-y)=a^2+a b-b^2

Solve the following simultaneous linear equations in two variables by the method of cross-multiplication : a(x+y)+b(x-y)=a^(2)-ab+b^(2) a(x+y)-b(x-y)=a^(2)+ab+b^(2)

Solve for x and y. (a-b)x+(a+b)y=a^(2)-2ab-b^(2) , (a+b)(x+y)=a^(2)+b^(2)

(a)/(x)-(b)/(y)=0,(ab^(2))/(x)+(a^(2)b)/(y)=a^(2)+b^(2)

Solve: (a - b )x + (a + b)y = a^(2) - 2ab - b^(2) and (a + b) (x + y) = a^(2) + b^(2)

(a-b)x+(a+b)y=a^(2)-2ab-b^(2)(a+b)(x+y)=a^(2)+b^(2) find x and y

Solve (by any method) : (a-b)x+(a+b)y=a^(2)-2ab-b^(2) (a+b)(x+y)=a^(2)+b^(2)

Factorise: ab (x ^(2) + y ^(2)) - xy (a ^(2) + b ^(2))

Fractorise: ab (x ^(2) + y^(2) ) + xy (a^(2) + b ^(2)).