exam
Maths Puzzle
Numerical Ability
Use the quadratic formula to solve the equation for (a) x in terms of y and (b)y in terms of x.
1)4x^2-4sy+1-y^2=0
2)2x^2-xy=3y^2+1
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exam Other Question
You are in a cave with 5 green- or blue-eyed people who can see in the dark. Green-eyed people always tell the truth; blue-eyed people always lie. A says: "I see three pairs of gre
Solve by factoring.
x^2 + 2x - 48 = 0