Question

Calcule o valor das potências


7²=
(-3)⁴=
-3⁴=
(-7)²=
31¹=
(-8)²=
100½=
(-2)³=​

Answer 1

Resposta:

$7^{2}$ = 49

$(- 3)^{4}$ = (-3).(-3).(-3).(-3) =  9 . 9 = 81

$- 3^{4}$ = - 3. 3. 3. 3 = - 81

$(- 7)^{2}$ = (-7).(-7) = 49

$31^{1}$ = 31

$\ (- 8)^{2}$ = (-8).(-8) = 64

$100^{\frac{1}{2} }$ = $(10^{2})^{\frac{1}{2} }$ = $10^{\frac{2}{2}}$ = $10^{1}$ = 10

$(- 2)^{3}$ = (-2).(-2).(-2) = 4. (-2) = - 8