) Error Analysis A student claims that 2i is the only imaginary root of a polynomial equation that has real coefficients. Explain the student’s mistake. B) You are building a rectangular sandbox for a childrens playground. The width of the sandbox is 4 times it’s height. the length of a the sandbox is 8ft more than 2 times it’s height. You have 40ft^3 of sand available to fill this sandbox. What are the dimensions of the sandbox

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