exam Maths Puzzle Numerical Ability

Please help with this equation.
Solve using the quadratic formula:
x^2-7x-1=-7
Thank you!

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exam Other Question

pentagon, hexagon, octagon constructions with compass and steps of constructions 5x/7-2x/5=6/35 these are fractions...numerators are 5x, 2x, & 6
denominators are 7, 5, & 35