exam
Maths Puzzle
Numerical Ability
solve the following quadratic equation by factoring
15x^3-4x^2-4x=0
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exam Other Question
(1/x+h+3)- (1/x+3)
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can you help me with question?
this is from a hand out.
Find the center and radius of x^2+y^2-x+2y-3=0
I figured r=square root 17/2
and c=(0.5,-1)