Question

resolva as equações em R


me ajudem prfv!​

Answer 1

Resposta:

Explicação passo-a-passo:

2^x=8              8:2=4:2=2:2= 1 => 2³

2^x=2³

x=3

---------------------

3^x+5=3^5

x+5=5

x=5-5

x=0

---------------------------

243=3^x+2               243:3=81:3=27:3=9:3=3:3=1 =>3^5

3^5=3^x+2

5=x+2

x+2=5

x=5-2

x=3

--------------------------

2^5x=128                         128:2=64:2=32:2=16:2=8:2=4:2=2:2=1 =>2^7

2^5x=2^7

5x=7

x=7/5

--------------------

5^x=1/125       125:5=25:5=5:5=1 =>5³

5^x=1/5³

5^x=5^-³

x=-3

--------------

7^x+1=7

x+1=1

x=1-1

x=0

-----------------

4^x=√2

(√2²)^x=√2

√2^²x=√2

2x=1

x=1/2

-------------------

9^x=∛3

√9^x=∛3

√3³^x=∛3

3³/²^x=3³/¹

3/2x=3

x=3.3/2

x=6.3/2

x=18/2

x=9