Question 1031015
X^2 + y^2 = 4
Y - X = 1 --> y = x + 1
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X^2 + y^2 = 4
Sub for y
x^2 + (x+1)^2 = 4
2x^2 + 2x + 1 = 4
2x^2 + 2x - 3 = 0
*[invoke solve_quadratic_equation 2,2,-3]
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x = -1/2 - sqrt(7)/2
y = +1/2 - sqrt(7)/2
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x = -1/2 + sqrt(7)/2
y = +1/2 + sqrt(7)/2