Question

formula for (a+ b+c)³ and (a+b+c)²​

Answer 1

${(a + b + c)}^{3} =$

${a}^{3 } + {b}^{3} + {c}^{3} + 3(a + b) + (b + c) + (c + a)$

$\rule{300}{3}$

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

${a}^{2} + {b}^{2} + {c}^{2} + 2ab + 2bc + 2ca$

$\rule{300}{3}$

hope this helps you xD

Answer 2

Answer:

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Step-by-step explanation:

(a+ b+c)³=a^3+b^3+c^3+3(a+b)(b+c)(a+c)

(a+b+c)²=a^2+b^2+c^2+2ab+2bc+2ca