Question

Me ajudem pf!!!! Eu preciso disso pra hoje ainda!!!!!​

Answer 1

1)a)(-2)+(-2)=-4

b)+(-2).(-2).(-2)=-8

c)(-3)⁰=1

d)-(-3).(-3).(-3)=27

e)1/2

f)-(-2/3)-²=

-(-3/2)²=

(-3/2).(-3/2)=

-9/4

2)a)(-2)²+(-2)³=

4+(-8)=-4

b)(-3)⁰-(-3)³=

1-(-27)=28

c)2‐¹+2⁰=

1/2+1=

$\frac{1}{2} + 1 = \frac{1 + 2}{2} = \frac{3}{2}$

d)(-2/3)².(-2/3)‐²=

(-2/3)².(-3/2)²=

(-2/3).(-2/3)+(-3/2).(-3/2)=

(4/9)+(9/4)=

$\frac{4}{9} + \frac{9}{4} = \frac{16 + 81}{36} = \frac{97}{36}$

3)x⁴.x²=x⁶

b)(x⁴)⁵=x²⁰

c)(2⁵.2³)=2¹⁵

d)2⁴.2⁶=2¹⁰

e)2¹⁰÷2⁸=2²

f)x⁶.x³=x⁹

4)(2⁴.2⁶)÷(2⁵.2³)=

2²⁶ ÷ 2¹⁵=

2¹¹

b)(x⁴.x².x³)²÷(x⁴)⁵=

x⁴⁸÷ x²⁰=

x²⁸

5)

$\sqrt{25 - 16 } + 16 \sqrt{0} - 3\sqrt{27} = \sqrt{5 - 4} + 0 - 3 = \sqrt{1} + 0 - 3 = 1 + 0 - 3 = - 2$