Question

x^3+1/x^3 factorise​

Answer 1

${x}^{3} + 1 \div {x}^{3} =( x + 1 \div x)( {x}^{2} + 1 \div {x}^{2} -1)$

because a^3+b^3=( a+b)(a^2+b^2-ab)

Answer 2

x^3+1/x^3

= x^3+1/x^3 * cube root 3/ cube root 3

= x+cube root 3/ 3