4x^3 + 2x^2 + 6x + 3
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The solution of the system of equation is (-2 ,2).
<h3>What is a System of Equation ?</h3>A system of equation is defined as the equation that have a common solution.
The system of equation is
x+y = 0
y = 2x+6
2x-y = -6
3x = -6
x = -2
y = 2
The graph of both the equations are plotted and the common point is the solution of the equations.
The solution of the system of equation is (-2 ,2).
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