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slamgirl [31]
2 years ago
14

What is the solution set?

Mathematics
1 answer:
Montano1993 [528]2 years ago
8 0

\left \{ {{y=x^2+2x+7} \atop {y=x+7}} \right. \left \{ {{x+7=x^2+2x+7} \atop {y=x+7}} \right. \left \{ {{x^2+2x-x+7-7=0} \atop {y=x+7}} \right. \left \{ {{x^2+x=0} \atop {y=x+7}} \right. \\\left \{ {{x(x+1)=0} \atop {y=x+7}} \right. \left \{ {{x_1=0, x_2=-1} \atop {y_1=0+7},y_2=-1+7} \right. \left \{ {{x_1=0, x_2=-1} \atop {y_1=7},y_2=6} \right.

There are 2 solution sets: (0,7) and (-1;6).

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