3 years ago

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

Mathematics

1 answer:

satela [25.4K]3 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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