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Mathematics 23 Online
OpenStudy (anonymous):

please check. 5x^2-5y^2=-35 5x^2 +2y^2=77 <<<< subtract? ----------------------- -7 y^2 = -112 y^2 = 16 --- y = +/-4 5x^2-5y^2=-35 5x^2-5(16)=-35 5x^2 = 45 x^2 = 9 --- x = +/- 3 solutions --- (4,3); (4,-3); (-4,3); (-4, -3)

OpenStudy (gorv):

yeah u did it right

OpenStudy (anonymous):

thanks

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