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sierra16
 3 years ago
√x+2 +4=x
sierra16
 3 years ago
√x+2 +4=x

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DHASHNI
 3 years ago
Best ResponseYou've already chosen the best response.0is it dw:1352394737565:dw

RadEn
 3 years ago
Best ResponseYou've already chosen the best response.0√(x+2) +4=x √(x+2) = 4x square both sides : x+2 = 168x+x^2 0 = 168x+x^2  x 2 x^2  9x +14 = 0 (x2)(x7) = 0 for zeros, x=2 or x=7 but we have to recheck again to original equation : √(x+2) +4=x for x=2, √(2+2) +4=2 6 = 2 (incorrect) for x=7, √(7+2) +4=7 7 = 7 (correct answer)
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