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Solve the inequality x(x + 6) > 16 + 4x.

 Jul 21, 2022
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\(x(x+6) > 16+4x\)

 

\(x^2 + 6x >16 + 4x\)

 

\(x^2 + 2x > 16\)

 

\(x^2 + 2x - 16 > 0 \)

 

\((x+1)^2 > 17\) (understand why)

 

Solve for x, should be pretty straightforward.

 

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 Jul 21, 2022

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