Algebra2

How do I solve this rational exponent equation?

(2x)^1/2 = x - 4

Thanks in advance ^^

asked by Lily
  1. Square both side first
    2x)^1/2^2=(x-4)^2
    2x=x^2-8x+16
    subtract 2x from both sides
    x^2-10x+16
    now FOIL
    (x-8)(x-2)

    posted by Pk

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