4ab+5b2+(2a2+b2-ab)+9 how we solve it
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Answer:
3ab + 6b² + 2a² + 9
Step-by-step explanation:
Given : 4ab + 5b² + (2a² + b² - ab) + 9
Step I : Open the bracket.
→ 4ab + 5b² + 2a² + b² - ab + 9
Step II : Unite the common terms.
→ 4ab - ab + 5b² + b² + 2a² + 9
→ 3ab + 6b² + 2a² + 9
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