21z^2+85z-26=0
solve using factoring...
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Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply
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Solve for x and y: 217x + 131y = 913; 131x + 217y = 827
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Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square
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