<PRE><B>Question 1087302</B>
{{{ x^2 - 6x - 7 &lt; 0 }}}

{{{ x^2 +x- 7x - 7 &lt; 0 }}}

{{{( x^2 +x)- (7x + 7) &lt; 0 }}}

{{{x( x +1)- 7(x + 1) &lt; 0 }}}

{{{(x- 7)(x + 1) &lt; 0 }}}

{{{(x- 7) &lt; 0 }}}=&gt;{{{x&lt;7}}}
{{{(x + 1) &lt; 0 }}}=&gt;{{{x&lt;-1}}}

solution:

{{{-1&lt;x&lt;7}}}

interval notation:
({{{-1}}},{{{7}}}) 


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