Jul 7, 2015 · This is known as a difference of squares. It can be factored as: x^2 - y^2 = (x-y)(x+y) Notice that when you multiply (x-y) by (x+y) then the terms in xy cancel out, leaving x^2-y^2 ... (x-y)(x+y) = x^2+xy-yx-y^2 = x^2+xy-xy-y^2 = x^2-y^2 In general, if you spot something in the form a^2-b^2 then it can be factored as (a-b)(a+b) For example: 9x^2-16y^2 = (3x)^2-(4y)^2 = (3x …

Sep 16, 2015 · Given:. To find:. the value for . Solution:. Let's consider . x = 2 and y = 3 and solve the equation. hence proved. ...

Jan 25, 2018 · You can't, really. While it looks like you can just cancel out the squares with the square root, this only works if you have one square within the radical. Since we're adding two together, it's slightly different. There's no way to factor x^2+y^2 to get a perfect square. The only real way to simplify this expression is by using math that's at a higher than algebra level, so for …

Feb 28, 2016 · See the explanantion This is the equation of a circle with its centre at the origin. Think of the axis as the sides of a triangle with the Hypotenuse being the line from the centre to the point on the circle. By using Pythagoras you would end up with the equation given where the 4 is in fact r^2 To obtain the plot points manipulate the equation as below: Given:" "x^2+y^2=r^2" …

Jan 25, 2016 · It is the equation of a circle: Probably you can recognize it as the equation of a circle with radius r=1 and center at the origin, (0,0): The general equation of the circle of radius r and center at (h,k) is: (x-h)^2+(y-k)^2=r^2

Sep 12, 2020 · X2 -y2- x-y factorise See answers Advertisement Advertisement pulakmath007 ...

Mar 11, 2024 · if x/3=2 sinA, y/3=2cos A,then the value of x²+y² is - 59904184

Feb 3, 2015 · You have: x^2-y^2=(x+y)(x-y) So in your case: (x^2-y^2)/(x-y)=((x+y)(x-y))/(x-y)=x+y

Jun 13, 2016 · center (0,0) Radius =2 The general equation of a circle is: (x-a)^2 + (y-b)^2 = r^2 Where (a,b) represent the coordinates of the center and r is the radius.

Mar 5, 2018 · This is a function of x and y. Can be wriiten as f(x)=y^2 A function is a relatioship between two variables broadly.