Question

factorise the following​

Answer 1

Step-by-step explanation:

${x}^{3} + 3 \times x ^{2} \times 3y + 27x {y}^{2} + 27 {y}^{3} \\ {x}^{3} + 3 \times {x}^{2} \times 3y + 3 \times x \times {9}y^{2} + 27 {y}^{3} \\ {x}^{3} + 3 \times {x}^{2} \times 3y + 3 \times x \times 9 {y}^{2} + (3y) ^{3} \\ {x}^{3} + 3 \times {x}^{2} \times 3y + 3 \times x \times (3y) ^{2} + (3y) ^{3} \\ (x + 3y) ^{3}$

Answer 2

Step-by-step explanation:

$\huge {\underline {\mathcal \color {gold} {Answer }}}$

x3+3×x2×3y+27xy2+27y3

x3+3×x2×3y+3×x×9y2+27y3

x3+3×x2×3y+3×x×9y2+(3y)3

x3+3×x2×3y+3×x×(3y)2+(3y)3

(x+3y)3