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Y=x^21 (Graph Example), 4x2=2 (x6) (Solve Example) Algebra Calculator is a calculator that gives stepbystep help on algebra problems See More Examples » x3=5 1/3 1/4 y=x^21 Disclaimer This calculator is not perfect Please use at your own risk, and please alert us if something isn't working Thank youBy substituting “x=2y” into “x 2 y 2 =4”, we obtain a single equation containing only one unknown variable (namely y) x 2 y 2 =4 (2y) 2 y 2 =4 this can then be expanded to create a quadratic equation which is solvable (42y2yy 2 )y 2 =4 2y 2 4y4=4 2y 2 4y=0 this equation can be solved by factorising the left hand side, and dividingSol=Reduce f x, y == 0, {x, y} () We get 4 different solutions Answer In Calculus For Promise Omiponle X^2-y^2=4 in polar form