How to solve a really nasty system of nonlinear equations?

Solve the nonlinear system of equations?

  • x^2-3y^2=1 4x^2+3y^2=19 Answers are ((2,1),(2,-1),(-2,1),(-2,-1)) I think it's possible to solve using the elimination method but I'm not 100% sure

  • Answer:

    add them and solve for x...for each x value there will be 2 y values....don't forget that √x² = ± x

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