exam Maths Puzzle Numerical Ability

Can someone please assist me with detailed step by step instructions on how to complete this problem? Your assistance and time is greatly appreciated.

Solve by completing the square.
x2 = 5x + 2

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exam Other Question

B + 3/E for E given a line containing (1,3),(2,4),(3,5)determine the slope-intercept from of the equation and give one additional point on this line and grapg the function.