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John and Tim are looking at the equation √(3x + 4) = x. John says that the solution is extraneous. Tim says the solution is non-extraneous. Is John correct? Is Tim correct? Are they both correct? Justify your response by solving this equation, explaining each step with complete sentences.
@phi
@E.ali @Osako
Square both sides and factorise
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4x+4?
you square both sides to get 3x + 4 = x^2
Is that it?
3x^2+16?
then you factorise |dw:1380747601194:dw|
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