kshyama20003 kshyama20003
  • 20-10-2019
  • SAT
contestada

\sqrt(4x)=x-3, what are all values of x that satisfy the given equation?
I.1
II. 9

Respuesta :

shaheryarkhan331
shaheryarkhan331 shaheryarkhan331
  • 22-10-2019

Answer:

1 and 9

Explanation:

[tex]\sqrt{4x} = x-3[/tex]

Taking Square on both sides:

(sqrt(4x))^2= (x-3)^2

4x= x^2 + 9 - 6x

x^2 - 10x + 9= 0

Solving Quadratic Equation

x^2 -9x -1x +9=0

x(x-9) -1(x-9)=0

(x-1)(x-9)=0

x=1 x=9

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