book
Maths Puzzle
Numerical Ability
Can you please help?
Two problems:
-x^2 -2x/x + 1 < 0
7x -1 / x^2 - 1 < 0
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book Other Question
if x=5, what does 2x^2 + x equal?
simplify; present your answer in fractional form; reduce to lowest terms, but do not change improper fractions to mixed numbers; all fractional coefficients must be within parenthe