exam
Maths Puzzle
Numerical Ability
Write (81^(x+1)(1/9^(4-x) / 27(243^(x-2) as a single power.
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exam Other Question
I have no idea how to solve this problem:
If y is inversely proportional to the square of x, and y=1 when x=4, find y when x=8.
250 + 2k^3x
factor the polynomial. state prime if needed.