hamidakbarpour8 hamidakbarpour8

18-10-2018
Mathematics

contestada

PLEASE HELP. what are the solutions to the system of equations x^2+y^2=5 y=2x

Respuesta :

crisforp crisforp

18-10-2018

Answer:

We have x^2 + 4x^2 = 5 ( we use substitution);

Then, 5x^2 = 5;

x^2 = 1;

x = +1 or x = -1;

Finally, y = +2 or y = -2.

Step-by-step explanation:

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