Question

(a + b + c) ^ 2 + (a - b - c) ^ 2​

Answer 1

Answer:

2a+2b+2c +2a -2b -2c

2a + 2a

4a

Answer 2

Step-by-step explanation:

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

$= > {2a}^{2} + {2b}^{2} + {2c}^{2} + 4bc$

$= > 2( {a}^{2} + {b}^{2} + {c}^{2} + 2bc)$