Alguien me da una mano?

A)

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20-%2023%20%7D%7B4%7D%20%2B%20x%20%5E%7B2%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20" />

<img src="https://tex.z-dn.net/?f=x%20%5E%7B2%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%2B%20%5Cfrac%7B23%7D%7B4%7D%20" />

<img src="https://tex.z-dn.net/?f=x%20%5E%7B2%7D%20%3D%20%5Cfrac%7B25%7D%7B1%7D%20" />

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%7Bx%7D%5E%7B2%7D%20%7D%20%3D%20%5Csqrt%7B%20%5Cfrac%7B25%7D%7B4%7D%20%7D%20" />

<img src="https://tex.z-dn.net/?f=x%20%3D%20%2B%20%5Cfrac%7B5%7D%7B2%7D%20" />

Y

<img src="https://tex.z-dn.net/?f=x%20%3D%20-%20%5Cfrac%7B5%7D%7B2%7D%20" />

b)

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B3%7D%20%2B%20%5Csqrt%7Bx%20%7D%20%3D%20%5Cfrac%7B13%7D%7B6%7D%20" />

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%7D%20%3D%20%5Cfrac%7B13%7D%7B6%7D%20-%20%5Cfrac%7B5%7D%7B3%7D%20" />

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%7D%20%3D%20%5Csqrt%7B%5Cfrac%7B1%7D%7B2%7D%20%7D" />

<img src="https://tex.z-dn.net/?f=x%20%3D%200.70" />

Y

[img = 10]

c)

[img = 11]

[img = 12]

[img = 13]

d)

3x ^ 4 - 7 / 16 = - 1 / 4

x ^ 4 = 1 / 16

x = 1 / 2 Y x = - 1 / 2

e)

raiz ((1 / 2)x) - 5 / 4 = - 11 / 12

x = 2 / 9

f)

3 / 243 + (x - 1 / 2) ^ 5 = 1 / 81

x = 5 / 6.