simplyfy : 5a(a-b+c)+5b(a+b-c) -5c(a-b-c) please help with full method
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Answer:
= 5a²-5ab+5ac+5ab+5b²-5bc-5ac+5bc+5c² (by simple multiplying term each number with its barcket)
= solving above equation we get
5a²+5b²+5c²
= 5(a²+b²+c²) =Answer
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