def test_pa_com_a_1_igual_a_1_e_r_igual_a_2():
pa = cria_soma_pa(1, 2)
assert_equals(pa(4), 16)
assert_equals(pa(5), 25)
def test_pa_com_a_1_igual_a_10_e_r_igual_a_3():
pa = cria_soma_pa(10, 3)
assert_equals(pa(2), 23)
assert_equals(pa(3), 39)
assert_equals(pa(4), 58)