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convert this equation 7x^2 + 2x + 7 = 0 into quadratic form.
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the equation can be converted into quadratic form by subtracting 7 from both sides, giving us 7x^2 + 2x = -7. then, divide both sides of the equation by 7, giving us x^2 + 2/7x = -1. finally, completing the square on the left hand side by adding 1/7 and taking the square root yields (x+1/7)^2 = 6/7. therefore, the equation can be expressed as (x+1/7)^2 = 6/7.
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