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PrecalculusChallengeSystems of Equations

Systems of Equations · Challenge problem

Solve the system for all real solutions (x,y)(x,y), listing the one with positive yy first.

{x2+y2=169(x−4)2+y2=145\begin{cases} x^2 + y^2 = 169 \\ (x - 4)^2 + y^2 = 145 \end{cases}