exam Maths Puzzle Numerical Ability

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Factor completely. x^4 +x^2 -12

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exam Other Question

Technology: Driving down a moutain, Tom finds he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredths. Simplify the expression x(2-x) - x(3-x).