exam Maths Puzzle Numerical Ability

multiply

(4x + 1)(2x^2 +x + 1)

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exam Other Question

A doctor prescribes an ointment that is 2% hydrocortisone. A pharmacist as 1% and 5% concentrations in stock. How much of each should the pharmacist use to make a 1-ounce tube? 2x+3=8