exam Maths Puzzle Numerical Ability

x^2/x+5-25/x+5

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exam Other Question

i factored this quadratic expression completely, and came up with the answer and roots of the expression. My answer is 6(x^2 + 5), root of 20. The problem is 6x2 - 42x + 72. Please tell me this is correct? 2 - 4x + 7x + 8 < 6x - 5x