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Convert the following polar equation to Cartesian coordinates. Algebra - Polynomial question (awarding best answer)? Can we GMO elephants so they digest like ruminants? Help in math explain please ty? Perform the indicated operations. (7x3 + 4x2y + 7xy2 - 3y3) + (2x3 + 7x2y + 9xy2 ) - (5x2y + 2xy2 + y3)?