Question #12617
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What is the expansion of (a+b+c)<sup>2</sup>?

A.
a<sup>2</sup> + b<sup>2</sup>+ c<sup>2</sup>+ 2 (ab + bc + ca)
B.
a<sup>2</sup> + b<sup>2</sup> + c<sup>2</sup>- 2ab + 2bc + 2ca
C.
a<sup>2</sup> + b<sup>2</sup> + c<sup>2</sup> + 2ab - 2bc + 2ca
D.
a<sup>2</sup> - b<sup>2</sup> - c<sup>2</sup> + 2ab + 2bc + 2ca
Explanation

No explanation provided.