exam
Maths Puzzle
Numerical Ability
Simplify the following expression. Give your answer using only positive values for the exponents.
(2x^-3)^4(3x^5)^-2
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exam Other Question
If the length of the side of a square is increased by 6 units, the area is multiplied by 4. Find the original side length.
n-4(1+5)=-2
n-4-20n=-2
4+21n=-2(+4)
21n=2
n=10.5