Plz answer this question guys..plz sweethearts♥♥

1.	Plz answer this question guys..plz sweethearts♥♥
Answer» $\displaystyle\huge\red{\underline{\underline{Solution}}}$ *DESCRIPTION* A cube is a GEOMETRICAL figure in three DIMENSIONS. It has six sides, eight vertices and 12 edges *FORMULA TO BE IMPLEMENTED* 1. If the side of a cube is x unit Then volume of the cube $= {x}^{3} \: \: \: cubic \: \: unit$ 2. ${(x + y)}^{3} = {x}^{3} + {y}^{3} + 3 {x}^{2} y + 3x {y}^{2}$ *EVALUATION* LET a be the side length of the cube Then ${a}^{3} = 27 {x}^{3} + 8 {y}^{3} + 54 {x}^{2} y + 36x {y}^{2}$ $\implies \: {a}^{3} = (3 {x})^{3} +( 2 {y})^{3} + 3 \times (3 {x}^{2} )\times 2 y + 3 \times 3x \times {(2y)}^{2}$ $\implies \: {a}^{3} = {(3x + 2y)}^{3}$ $\therefore \: a \: = 3x + 2y$ $\red{\fbox {Hence the side length of the cube = 3x+ 2y }}$

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$\displaystyle\huge\red{\underline{\underline{Solution}}}$