Add: 3a²b² - 4ab + 5, 8a ²b² + 12ab - 9, 15 - 6ab -5a²b4²
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Answer:
3a²b²+(-4ab),+5+8a²b²+12ab+(-9)+15+(-6ab)+(-5a²b²)
Step-by-step explanation:
3a²b²+2ab+11
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