Решить систему неравенств . помогите ) 3x²+y=6. 4x²-y=1

[latex] \left \{ {{3x^2+y=6} \atop {4x^2-y=1}} \right. [/latex] [latex] \left \{ {{y=6-3x^2} \atop {4x^2-6+3x^2=1}} \right. [/latex] [latex] \left \{ {{y=6-3x^2} \atop {7x^2=7}} \right. [/latex] [latex] \left \{ {{ x_{1 }=1 } \atop {y_{1}=3}} \right. [/latex] [latex] \left \{ {{x_{2}=-1} \atop {y_{2}=3}} \right. [/latex]