Ikunupe6v

2021-12-11

Factor each polynomial.

$27-{r}^{3}$

twineg4

Beginner2021-12-12Added 33 answers

Step 1

$27-{r}^{3}$

$\Rightarrow$ We can write it as

$\Rightarrow {\left(3\right)}^{3}-{\left(r\right)}^{3}$

Step 2

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

$\therefore 27-{r}^{3}\Rightarrow (3-r)(9+{r}^{2}+3r)$

Step 2

$\frac{20b}{{\left(4{b}^{3}\right)}^{3}}$

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