From the sum of 3a² +5ab - 7b² and 11a² - 6ab +2b²; subtract a²- 2ab - 3b²
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3a²+5ab-7b²
+11a²-6ab+2b²
=14a²-ab-5a²
Now, subtraction.
14a²-ab-5a²
-a²+2ab+3b² (Changing signs)
=13a²+ab-2b²
Answered by
4
Answer:
The answer is 13a^+ ab-2b^
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