exam
Maths Puzzle
Numerical Ability
3x + 5y - (3y x 7) simplify expression
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exam Other Question
solve the homogeneous system: {x^2-144y^2=144
x^2+y^2=144
x^2-2xy-15y^2
x^2+x+1
5x^2+25x+30
x^2-xy-12y^2