Question

3x² + 2x – 2 – 2x² + 5x + 5 = _________________________________________________

5b + 7b² + 12 + 3b – 4b² - 7 = ________________________________________________

3x² - 2x + 2 + 5x³ - 2x² + 3x – 4 = _____________________________________________

(4x² - 5x + 3) + (-2x² - 2x – 4) = _______________________________________________

x + (x + 1) + (x + 2) = ______________________________________________________

(3x³ - 4x² - 5x) + (5x³ + 2x² - 3x) = __________

Answer 1

Respuesta:

la primera solo me se la primera 3ײ+2×-2-2ײ+5×+5=es 23²