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OpenStudy (anonymous):
sqrt(4x+16)-4=x
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OpenStudy (anonymous):
add four to both sides and square both sides
OpenStudy (anonymous):
you'll get 4x + 16 = x^2 +8x + 16 subtract 4x + 16 from both sides 0 = x^2 + 4x x(x + 4) = 0 x = -4 or 0
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