Solve using the Quadratic Formula: 3x2 + 3x - 6 - 0 - 2, 1 1, 2 - 3, 9 - 3, - 9

Question

Mathematics

Midge

29 September, 14:55

Solve using the Quadratic Formula: 3x2 + 3x - 6 - 0 - 2, 1 1, 2 - 3, 9 - 3, - 9

+2

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Sydney Yoder · Answer 1

Assuming that the equation is 3x^2+3x-6=0, then use the quadratic equation, (-b + - sqrt (b^2-4ac)) / 2a, with ax^2+bx+c as the original equation. so here we get (-3+-sqrt (9+72)) / 6 = (-3+-sqrt (81)) / 6 = (-3+-9) / 6, = (-1+-3) / 2 = 1 or - 2. Plug in original to check.