exam
Maths Puzzle
Numerical Ability
log base x of 81=4
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exam Other Question
Subtract. 4x - 2x^2 + 4x^3 from 4x^3 + x - 3x^2.
I am in dire need of help. Thanks.
2x-y+z=3
x+3y-2z=11
3x-2y+4z=1