Question

Factorize (a-b-c) whole square

Answer 1

Answer:

a²+b²+c²-2(ab+bc+ca)

Step-by-step explanation:

=>(a+b+c)(a+b+c)

=>a²+b²+c²-2(ab+bc+ca)

ans.

Answer 2

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

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