Mister Exam

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How to use it?
Least common denominator:
(-y*e/(e+1)+(1-y)*e/((1-1/(e+1))*(e+1)^2))
(y-4/(3*y-3)+1/(y-1))/y+1/(3)+2/(y^2-1)
y^2/x^2+y/x
x*y-y/x-x*y-x/y-x^2-y^2/x*y
Factor polynomial:
z^3-6*z^2+21*z-26
z^3+5*z^2+17*z+13
z^3+3*z^2
z^3-2*z^2+z-2
Factor squared:
-y^4-7*y^2+9
-y^4-7*y^2-9
-y^4+7*y^2+7
-y^4+7*y^2-4
How do you in partial fractions?:
1/(2*sqrt(x)*(1+x))
(x^2+x-12)/(x-3)
(d^3+1)/(d^2-d+1)
((x+3)/(x^2+18*x+45))
Limit of the function:
x/y+y/x
Identical expressions
x/y+y/x
x divide by y plus y divide by x
x divide by y+y divide by x
Similar expressions
x/y-y/x

Expression simplification/ Least common denominator/ x/y+y/x

Least common denominator x/y+y/x

The solution

You have entered [src]

x   y
- + -
y   x

$$\frac{x}{y} + \frac{y}{x}$$

x/y + y/x

Combinatorics [src]

 2    2
x  + y 
-------
  x*y

$$\frac{x^{2} + y^{2}}{x y}$$

(x^2 + y^2)/(x*y)

Numerical answer [src]

x/y + y/x

x/y + y/x

Common denominator [src]

 2    2
x  + y 
-------
  x*y

$$\frac{x^{2} + y^{2}}{x y}$$

(x^2 + y^2)/(x*y)

Rational denominator [src]

 2    2
x  + y 
-------
  x*y

$$\frac{x^{2} + y^{2}}{x y}$$

(x^2 + y^2)/(x*y)

Combining rational expressions [src]

 2    2
x  + y 
-------
  x*y

$$\frac{x^{2} + y^{2}}{x y}$$

(x^2 + y^2)/(x*y)