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posted by luckybee on Friday, June 29, 2012 at 1:03pm.
X^2 + Y^2 =70 Y = 2X + 5 MY ANSWER: -5.6, 1.6 is this correct?
x^2 + (2x+5)^2 = 70 5x^2 + 20x - 45 = 0 x^2 + 4x - 9 = 0 x = (-4 ± √52)/2 = -2 ± √13 = -5.6, 1.6 we have a winner!
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