What is the value of $(x + 1) ( x^2 - x + 1)$ ?
Answer & explanation
Correct answer: option 3
$(x + 1) ( x^2 - x + 1)$
= $(x + 1) ( x^2 - x + (1)^3)$
So this is the formula of $x^3 + 1^3$ = $x^3 + 1$
What is the value of $(x + 1) ( x^2 - x + 1)$ ?
Correct answer: option 3
$(x + 1) ( x^2 - x + 1)$
= $(x + 1) ( x^2 - x + (1)^3)$
So this is the formula of $x^3 + 1^3$ = $x^3 + 1$