(7x3+2x2-11x)+(-3x3-2x2+5x-3)
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(7x³ + 2x² - 11x) + ( - 3x³ - 2x² + 5x- 3) =
7x³ + 2x² - 11x - 3x³ - 2x² + 5x - 3 = Reduces terminos semejantes
(7x³ - 3x³) + (2x² - 2x²) + ( - 11x + 5x) - 3 =
4x³ + (- 6x) - 3 = Para quitar parentesis aplicas ley de signos + por - = -
4x³ - 6x - 3
Respuesta.
4x³ - 6x - 3