mckensitucker48 mckensitucker48
  • 08-04-2020
  • Mathematics
contestada

Solve: left parenthesis 7 x minus 3 right parenthesis to the power of 1 half end exponent equals 5

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ItzBlueish
ItzBlueish ItzBlueish
  • 08-04-2020

Answer:

[tex]x = 4[/tex]

Step-by-step explanation:

[tex](7x-3)^\frac{1}{2} = 5[/tex]

[tex]\left(\left(7x-3\right)^{\frac{1}{2}}\right)^2=5^2[/tex]

[tex]\left(7x-3\right)^{\frac{1}{2}\cdot \:2} = 5^2[/tex]

[tex]7x-3=5^2[/tex]

[tex]7x-3=25[/tex]

[tex]7x-3+3=25+3[/tex]

[tex]7x=28[/tex]

[tex]\frac{7x}{7}=\frac{28}{7}[/tex]

[tex]x=4[/tex]

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