10- Obtenha a soma de (–25a + 7ab) com (–4ab + 16a).
a) –29a + 23ab
b) –29a2b + 23ab
c) –6ab
d) –9a + 3ab
a) –29a + 23ab
b) –29a2b + 23ab
c) –6ab
d) –9a + 3ab
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letra d) -9a+3ab
(–25a + 7ab) + (–4ab + 16a)
-25a+7ab-4ab+16a
-25a+16a+7ab-4ab
-9a+3ab
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28/10/23