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Kay [80]
3 years ago
6

Please answer fast???????????

Mathematics
1 answer:
kherson [118]3 years ago
5 0

Answer:

the second one i think

Step-by-step explanation:

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\huge \huge \huge\huge\mathrm{ \boxed{ \boxed{ \boxed{ \boxed{ \boxed {\boxed{  \huge\mathfrak{ Solution}}}}}}}}

  • \sqrt{x - 1}   - x =  - 7

  • \sqrt{x - 1}  =x  - 7

  • x - 1 = (x - 7) {}^{2}

  • x - 1 =  {x}^{2}  + 49 - 14x

  • {x}^{2}  - 14x + 49 - x + 1 = 0

  • {x}^{2}  - 15x + 50 = 0

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  • x(x - 10) - 5(x - 10) = 0

  • (x - 5)(x - 10) = 0

  • x = 5 \:  \:  \: or \:  \:  \: x = 10

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3 years ago
Read 2 more answers
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