exam Maths Puzzle Numerical Ability

faxtor: 12w2+10w-8
factor 4k2+20k+25
factor: 16e2-4
factor: 3a2+9a+6

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exam Other Question

Noah�s ark is 300 cubits long, 50 cubits wide and 30 cubits high. Use a rectangular prism with no top as an approximation to the shape of the ark. What is the surface area of the a I need help finding the vertex of the parabola

f(x)=-x2+3x-1