Question: Marc's rectangular garden measures 7 m by 10 m. He wants to double the area of his garden by adding equal lengths to both dimensions.

Marc's rectangular garden measures 7 m by 10 m. He wants to double the area of his garden by adding equal lengths to both dimensions. Determine this length to the nearest tenth of a metre. Show your work. Determ the equation kx2 + 6x +3 = 0 has 3

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