exam
Maths Puzzle
Numerical Ability
how do you solve 2log(x)+log2 (x-1)=2
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exam Other Question
fractoring trinomials by grouping
60p^4+81p^3+27p^2
solve the following system of equations using matrices
x-y+4z=6
2x+z=1
x+5y+z=-9
is it (0, 1, -2)??