exam
Maths Puzzle
Numerical Ability
Solve: x^2 - 4x - 1=0 by completing the square.
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exam Other Question
Subtract then simplify
(2 square root 18) - (4 square root 2)
Any help please?
Find the vertex, focus, and directrix of the graph of the equation:
-20(x+2)= (y+3)^2