exam Maths Puzzle Numerical Ability

The volume of a box is 2p^4 + 14p^3 + 20p^2. The height is p and the width is p + 5. What is the length?

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exam Other Question

i need help solving this:
(x-radical y-z)-(x+radical y-z)-(radical y+z-x)
final simplified result

5x - 5y 5x - 10y
÷
x2 + 6xy - 16y2 x2 +