Question

what is the formula of (a-b-c)²?​

Answer 1

Answer:

Formula:

a2+b2+c2-2ab+2bc-2ac

Hope it helps ☺️

Answer 2

Answer:

${(a - b - c)}^{2} = {(a)}^{2} + {( - b)}^{2} + {( - c)}^{2} + 2 \times \: a \times ( - b) + 2 \times \: ( - b) \times ( - c) + 2 \times \: ( - c) \times a \\ = {a}^{2} + {b}^{2} + {c}^{2} - 2ab + 2bc - 2ca$