Question

by using standart form expand (x+2)^3​

Answer 1

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$( {x + 2)}^{3}$

by using the Identity:

$(a + b)^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2} b + 3a {b}^{2}$

$= {x}^{3} + {(2)}^{3} + 3(x)^{2} (2) + 3x( {2)}^{3}$

${x}^{3} + 8 + 6 {x}^{2} + 24x$

in standard form:

${x}^{3} + 6 {x}^{2} + 24x + 8$