Question

Qual o polinômio que representa a soma (5ª + 7ab - 4b) + (-2ª + 3ab +3b) ?

Answer 1

$(5^a + 7ab - 4b) + (-2^a + 3ab +3b) \to\\\\ 5^a + 7ab - 4b - 2^a + 3ab +3b\to\\\\ 5^a- 2^a+ 7ab + 3ab - 4b+3b\to\\\\ \large\boxed{3^a+10ab-b}$