Question

simlyfy the (a+b+c)2 +(a-b+c)2 +(a+b-c)2
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Answer 1

Answer: (a+b+c)²+(a-b+c)²+(a+b-c)²

=a²+b²+c²+2ab+2bc+2ca+a²+b²+c²-2ab-2bc+2ca+a²+b²+c²+2ab-2bc-2ca

=3a²+3b²+3c²+2ab-2bc+2ca

Step-by-step explanation:

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Answer 2

Answer:

6(a+b+c)

Step-by-step explanation:

= 2(a+b+c)+2(a+b+c)+2(a+b+c)

= 2+2+2(a+b+c)

= 6(a+b+c)

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