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$2x^3-2x^2+4x-x^3+3x^2-5x+7\cdot 4yx^3-7x^2-4x-5$
Learn how to solve simplification of algebraic expressions problems step by step online. 2 x^3 - 2 x^2 + 4x - 1; x^3 + 3 x^2- 5x + 7 y 4 x^3 - 7 x^2 - 4x - 5 . Math interpretation of the question. Multiply 7 times 4. Combining like terms 2x^3 and -x^3. Combining like terms -2x^2 and 3x^2.