exam
Maths Puzzle
Numerical Ability
sqrt(3x-5) - sqrt(x+7)=2 solve for x...may be more than one answer
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exam Other Question
6x^2y^3+9x^2y^3 over 3x^2y^2=
solve the homogeneous system: {x^2-144y^2=144
x^2+y^2=144