Question

(x+3y)whole cube step by step answer pls pls pls.

Answer 1

$(x + 3y) {}^{3}$
$suitable \: identity \\( a + b) {}^{3} = a {}^{3} + b {}^{3} + 3ab(a + b)$
$(x + 3y) {}^{3} =( x ){}^{3} + (3y) {}^{3} + 3 \times x \times 3y(x + 3y) \\ x {}^{3} + 27y {}^{3} + 9xy(x + 3y) \\ x {}^{3} + 27y {}^{3} + 9x {}^{2} y + 27xy {}^{2}$

Answer 2

Step-by-step explanation:

hope it helps please make my answer as brainlist