(a-b-c) to the power of 2.

Please answer fast.

a^2+b^2+c^2-2ab+2bc-2ca

Yeah you're right.

ya

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(a-b-c) to the power of 2.

Please answer fast.

a^2+b^2+c^2-2ab+2bc-2ca

Yeah you're right.

ya

Log in to add a comment

The Brainliest Answer!

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

We know that (a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca (a-b-c)^2=a^2+(-b)^2+(-c)^2+2(a)(-b)+2(-b)(-c)+2(-c)(a)

=a^2+b^2+c^2-2ab+2bc-2ca

=a^2+b^2+c^2-2ab+2bc-2ca

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

a^2+b^2+c^2-2ab+2bc-2ca