find the product (a+b+c) (a+b+c)
Answers
Answered by
0
Answer:
a^2+b^2+c^2+2ab+2bc+2ca
Answered by
1
Answer:
a² + b² + c² + 2( ab + bc + ca )
Step-by-step explanation:
(a+b+c)(a+b+c)
= a(a+b+c) + b(a+b+c) + c(a+b+c)
= a² + ab + ac + ba + b² + bc + ac + bc + c²
= a² + b² + c² + 2ab + 2ac + 2bc
= a² + b² + c² + 2( ab + bc + ca )
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