-a-b+[a+b+{a+b-{-a-b+(-a-b+a+b)}}]
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Answered by
1
Answer:
= a+b²
Step-by-step explanation:
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Answered by
2
Answer:
= a-b + ab, b-c + bc, c-a + achi
= a-b+ b-c + c- a+ ab +bc+ ac
= 0+ ab +bc+ ac
= ab+ bc +ac
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