book Maths Puzzle Numerical Ability

The owners of ABC video discovered that they had no movies in common with XYZ video and bought XYZ’s entire stock. Although XYZ had 200 titles, they had no children’s movies, whil

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book Other Question

Solve by completing the square:
x^2 + 6x - 8 = 0


Solve by using the quadratic formula:
z^2 -6z -14 = 0


Solve:
x^2 + 2x - 8
6/7 = 13/n what is n ?