Question

Simplify {a+b+c}[a+b-c ]​

Answer 1

Answer:

${a}^{2} + ab - ac + ab + {b}^{2} - bc + ac + bc - {c}^{2} = {a}^{2} + 2ab + {b}^{2} - {c}^{2}$

hope this helps you

Answer 2

Answer:

(a+b+c)(a+b-c)

a(a+b-c) +b(a+b-c) +c(a+b-c)

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

a2+b2-c2+2ab

here a2 is a square

b2 is b square and c2 is c square