Oscar A. answered 12/30/19
Very Patient Tutor
Hello Gattis: Wen have a Subtraction problem
7a - a^2 (Second power I believe is what you meant.)
-- 4a + 3a^2
_________________
= 7a - a^2
+4a - 3a^2 (Change signs from above)
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= 11a -4a^2 = Answer
Hope this helps!