If `[3x^2+10xy+5y^2]=[xy]A[[x],[y]]` and A is a symnmertic matrix then A=

In the equations 3x+2y=13xy and 4x-5y=2xy, the values of x and y that satisfy the equations are

Add: 4x^2y,-3xy^2,5xy^2,5x^2y

Add 5x^2 + 3xy + 2y^2 and 2y^2 - xy + 4x^2 .

If 4x - 3y = 7xy and 3x + 2y = 18xy , then (x,y) =

if y + x = 5xy , y - x = -xy

If 9x^(2)+25y^(2)=661 and xy=10, find the value of (5y-3x)

If the pairs of lines x^(2)+2xy+ay^(2)=0 and ax^(2)+2xy+y^(2)=0 have exactly one line in common,then the joint equation of the other two lines is given by 3x^(2)+8xy-3y^(2)=03x^(2)+10xy+3y^(2)=0y^(2)+2xy-3x^(2)=0x^(2)+2xy-3y^(2)=0

Add: 4x^2y, – 3xy^2, –5xy^2, 5x^2y

If x:y=5:6, then (3x^2 - 2y^2) : (y^2 - x^2) is