Mister Exam

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How to use it?
2xy+2y^2-20y-6x+42; x^2+4xy-20x+8y
x+y=500; 1,3x+1,2y=630
x+y-z-u+v=1; x-y+z+u-2v=0; 3x+3y-3z-3u+4v=2; 4x+5y-5z-5u+7v=3
x+y=110; x+z=160; z+v=140; y+v=90
Canonical form:
x^2+6xy+9y^2
Identical expressions
x^ two +6xy+9y^ two = thirty-six ; x-2y= one
x squared plus 6xy plus 9y squared equally 36; x minus 2y equally 1
x to the power of two plus 6xy plus 9y to the power of two equally thirty minus six ; x minus 2y equally one
x2+6xy+9y2=36; x-2y=1
x²+6xy+9y²=36; x-2y=1
x to the power of 2+6xy+9y to the power of 2=36; x-2y=1
Similar expressions
x^2-6xy+9y^2=36; x-2y=1
x^2+6xy+9y^2=36; x+2y=1
x^2+6xy-9y^2=36; x-2y=1

x^2+6xy+9y^2=36; x-2y=1

You have entered [src]

 2              2     
x  + 6*x*y + 9*y  = 36

$$9 y^{2} + \left(x^{2} + 6 x y\right) = 36$$

x - 2*y = 1

$$x - 2 y = 1$$

x - 2*y = 1

Rapid solution

$$x_{1} = - \frac{9}{5}$$
=
$$- \frac{9}{5}$$
=

-1.8

$$y_{1} = - \frac{7}{5}$$
=
$$- \frac{7}{5}$$
=

-1.4

$$x_{2} = 3$$
=
$$3$$
=

$$y_{2} = 1$$
=
$$1$$
=

Numerical answer [src]

x1 = 3.0
y1 = 1.0

x2 = -1.8
y2 = -1.4

x2 = -1.8
y2 = -1.4