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sierra16

  • 3 years ago

√x+2 +4=x

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  1. DHASHNI
    • 3 years ago
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    is it |dw:1352394737565:dw|

  2. sierra16
    • 3 years ago
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    yes

  3. RadEn
    • 3 years ago
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    √(x+2) +4=x √(x+2) = 4-x square both sides : x+2 = 16-8x+x^2 0 = 16-8x+x^2 - x -2 x^2 - 9x +14 = 0 (x-2)(x-7) = 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)

  4. DHASHNI
    • 3 years ago
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    |dw:1352395918952:dw|

  5. DHASHNI
    • 3 years ago
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    |dw:1352395968865:dw|

  6. DHASHNI
    • 3 years ago
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    |dw:1352396056142:dw|

  7. DHASHNI
    • 3 years ago
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    |dw:1352396106921:dw|

  8. DHASHNI
    • 3 years ago
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    |dw:1352396143440:dw|

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