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beks73 [17]
2 years ago
14

HELP!

-7" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
katen-ka-za [31]2 years ago
6 0

\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

  • {x}^{2}  - 10x - 5x + 50 = 0

  • x(x - 10) - 5(x - 10) = 0

  • (x - 5)(x - 10) = 0

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

Tresset [83]2 years ago
5 0

Answer:

refer the Attachment for answer

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