Respuesta :

Answer:

x=2

Step-by-step explanation:
Part 1:

[tex]\sqrt{4x-3}=5[/tex]
First we can square both sides to remove the square root symbol:

[tex](\sqrt{4x-3})^{2} =(5)^{2}[/tex]

Simplify:

[tex]4x-3=5[/tex]

Add 3 to both sides and simplify:

[tex]4x=8[/tex]

Divide both sides by 4 and simplify to find x:

x=2

Part 2:

Extraneous solutions are values that we get when solving equations that aren't really solutions to the equation.

If we substitute 2 into the equation we get:

[tex]\sqrt{4(2)-3} =5[/tex]

Simplify to get:

[tex]\sqrt{8-3} =5[/tex]

[tex]\sqrt{5} =5[/tex] WHICH IS INCORRECT

Therefore the solution is extraneous