- #1
mathlearn
- 331
- 0
If x-y= 1 & x2y - xy2 =2, Find the value of x2+y2
Any Ideas on how to begin?
Many Thanks :)
Any Ideas on how to begin?
Many Thanks :)
mathlearn said:If x-y= 1 & x2y - xy2 =2, Find the value of x2+y2
Any Ideas on how to begin?
Many Thanks :)
kaliprasad said:you can factor 2nd equation to get xy(x-y) = 2.
now put from 1st equation value of x-y to get xy * 1 = 2 or xy =2
now $(x^2+y^2) = (x-y)^2 + 2xy = 1 ^2 + 2 * 2 = 5$
The equation for finding the value of x square + y square is: x2 + y2.
To solve for x square + y square, simply plug in the given values for x and y into the equation x2 + y2 and solve for the resulting expression.
No, the value of x square + y square cannot be negative. Squaring a number always results in a positive value.
The value of x square + y square represents the sum of the squares of two numbers, x and y.
No, this equation is only applicable for finding the value of x square + y square when given numerical values for x and y. It cannot be used for non-numerical values.