Question

Resolva

1)
$5 ^{ \times 2} - 4 \times + 3 = 1$
2)
$\binom{3}{5} ^{ 2 \times } = \frac{125}{27}$
para agora por favor
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Answer 1

Resposta:

Explicação passo a passo:

Exponencial

5^(x^2 - 4x +3)= 1

5^(x^2 - 4x + 3)= 5^0

x^2 - 4x + 3 = 0

a = 1 b = - 4; c = 3

/\= b^2 - 4ac

/\= (-4)^2 - 4.1.3

/\= 16 - 12

/\= 4

X = [-(-4)+/- \/4] / 2.1

x = [4 +/- 2]/2

x ' = (4+2)/2= 6/2= 3

X "= (4-2)/2= 2/2= 1

R.:: {3,1}

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B)

(3/5)^2x = 125/27

(3/5)^2x = (5^3 / 3^3)

(3/5)^2x = (5/3)^3

(3/5)^2x = (3/5)^(-3)

2x = -3

x = - 3/2

R.: s = {-3/2}