Question

If a+ b+ c = 9 and ab + bc + ca = 36, find a^2 + b^2+c^2 .

Answer 1

Ur answer is in the attachment .

Hope this helps u

If answer is correct then plz mark me as brainlist

Answer 2

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

=9^-(2×36)

=81-72

=9