exam
Maths Puzzle
Numerical Ability
x^3 - 4x^2 - 21x = 0
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exam Other Question
Factor each polynomial completely by factoring out any common factors and then factor by grouping. Do not combine like terms.
3a^3+3ab^2+2a^2b+2b^3
please help!
simplify
-2/-2^-3 - 3/-3^-2