exam Maths Puzzle Numerical Ability

Factor. 25x^2-90x+81

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exam Other Question

A circular pond 26 yd in diameter is surrounded by a gravel path 2 yd wide. The path is to be replaced by a brick walk costing $50 per square yard. How much will the walk cost? 3 square root sign 64x^7 divided by 3 square root sign 4x