Question

$rational\:roots\:x^3-7x+6$

solve it

Answer 1

Explanation:

$\sf \: rational\:roots\:x^3-7x+6 \\ \\ \sf \to \: \: x( {x}^{2} - 7) + 6 \\ \\ \sf \to \: \:(x + 6)( {x}^{2} - 7) \\ \\ \sf \to \: \red{x \: = - 6 \: and \: x \: = \sqrt{7} }$

Answer 2

Answer:

Explanation:

$\begin{gathered}\sf \: rational\:roots\:x^3-7x+6 \\ \\ \sf \to \: \: x( {x}^{2} - 7) + 6 \\ \\ \sf \to \: \:(x + 6)( {x}^{2} - 7) \\ \\ \sf \to \: \gray{x \: = - 6 \: and \: x \: = \sqrt{7} }\end{gathered} </p><p>$