Book Maths Puzzle Algebra

Which graph best represents the inequality of -x + y > 3?

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I would like to know how to solve the equation x^2+8x-2=0 using both, The quadratic formula and Completing the square. And how do I compare and contrast the two methods. Tweleve is the least positive integer with six different positive factors. The factors are 1, 2, 3, 4, 6, 12. What is the least positive integer with exactly twenty-four different