Question

Factorise a^3 + b^3 + a+ b

Answer 1

a³ + b³ = (a + b)(a² – ab + b²)

(a + b)(a² – ab + b²) + (a+b)

(a+b)(a² – ab + b²+1)

Answer 2

Answer :

${a}^{3} + {b}^{3} = (a + b)( {a}^{2} - ab + {b}^{2} + 1)$

Step-by-step explanation :

$({a})^{2} + ({b})^{3} + a + b \\ = (a + b) ( {a}^{2} - ab + {b}^{2} ) + (a + b) \\ = (a + b) ( {a}^{2} - ab + {b}^{2} +1)$