Question

Помогите решить, тема многочоены, срочно

Answer 1

$(x^{3} - 3x - 5) + (-x^{2} + 3x + 6) = x^{3} - 3x - 5 - x^{2} + 3x + 6 = x^{3} - x^{2} + 1;\(a^{2} + 7a - 8) - (a^{2} - 11a - 8) = a^{2} + 7a - 8 - a^{2} + 11a + 8 = 18a;\(3x - 2)(9x^{2} + 6x + 4) = 27x^{3} + 18x^{2} + 12x - 18x^{2} - 12x - 8 = 27x^{3} - 8;\(a-1)(a+3) - 2a(1 - 3a) = a^{2} + 3a - a - 3 - 2a + 6a^{2} = 7a^{2} - 3.$

Answer 2

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