5x^2+2x=17

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Use the quadratic formula to solve for x First, subtract 17 on both sides. Then you will have 5x^2 + 2x - 17 = 0 a = 5 b = 2 c = -17 Plug it into the quadratic formula and you will get: x = (1/5)(-1 - sqrt(86)) x = (1/5)(-1 + sqrt(86))