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Maths Puzzle
Numerical Ability
Simplify: 25a^4 - 25b^4 / 5a^4 - 5b^4
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I need help with this question..
given x < 0 and abs(x-1) < 3, state the interval in which x must lie
could you please help me with this problem:
-8≤2x - 4≤8