book
Maths Puzzle
Numerical Ability
Solve pair of simultaneous equations:
2x^2 - 3y^2 = 5xy 2
-3x + y = 5
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book Other Question
x^-6x+9=0
solve equation using "t" substitution method:
12r^4-11r^2+2=0 (12r^4 just means 12r to the fourth, same with 11r^2)