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Helga [31]
2 years ago
7

Simultaneous equations x^2+3xy=10 x=2y

Mathematics
1 answer:
satela [25.4K]2 years ago
8 0

9514 1404 393

Answer:

  (x, y) = (-2, -1) or (2, 1)

Step-by-step explanation:

Substitute for x in the first equation:

  (2y)^2 +3(2y)y = 10

  10y^2 = 10

  y^2 = 1

  y = ±1

  x = 2y = ±2

Solutions are (x, y) = (-2, -1) or (2, 1).

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