exam Maths Puzzle Numerical Ability

How do you solve this equation:

a(square)+ 2ab - c(square) - c (square) - 2cd - d (square)

I have typed (square) to suggest a to the power of 2.

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exam Other Question

Convert 4^3 = 64 to logarithmic form Mrs. Gardner went to the market. She purchased some lettuce heads and some tomatoes. There were 12 items purchased. She bought twice as many tomatoes as lettuce heads.