[3a2 - 2a2. + 9a2- {. 6a2- (-2a2+ 3a2 )]}
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Answered by
0
Answer:
5a^2
Step-by-step explanation:
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Answered by
3
Answer:
= 5a²
Step-by-step explanation:
= [ 3a² - 2a² + 9a² - {6a² - (-2a² + 3a²)}]
= [ 3a² - 2a² + 9a² - { 6a² - a²}]
= [ 3a² - 2a² + 9a² - 5a²]
= [ 12a² - 7a²]
= 5a²
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