Question

(-7) x [(-2)⁴ : (-8) - (-1) la puterea 0]​

Answer 1

Răspuns:

• 21

Explicație pas cu pas:

(-7) x [(-2)⁴ : (-8) - (-1) la puterea 0] =

(-7) x [ 16 : (-8) - 1] =

-7 x [-2 - 1 ] =

-7 x (-3) =

21

Answer 2

Răspuns: $\bf \red{\underline{21}}$

Explicație pas cu pas:

$\bf \big(-7\big) \cdot \Big[\big(-2\big)^4 : \big(-8\big) - \big(-1\big)^0\Big]=$

$\bf \big(-7\big) \cdot \Big[2^4 : \big(-8\big) - 1\Big]=$

$\bf \big(-7\big) \cdot \Big[16 : \big(-8\big) - 1\Big]=$

$\bf \big(-7\big) \cdot \big(-2- 1\big)=$

$\bf \big(-7\big) \cdot \big(-3\big)= \red{\underline{21}}$

$\red{\bf \underline{Formule~pentru~puteri}:}$

$\bf a^{0} = 1;$

$\bf (a^{n})^{m} = a^{n \cdot m};$

$\bf a^{n}\cdot a^{m} =a^{n+m};$

$\bf a^{n}: a^{m} =a^{n-m}$