book
Maths Puzzle
Numerical Ability
7
___
z^2
minus
9
____
Z
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book Other Question
Factoring Trinomials By Grouping
3n^3+12n^2-36n
Please help me solve the following word problem. I am confused about what formula to use.
It costs $57.20 to frame a rectangular painting with a flat aluminum strip. This was c