if x=2x is a root of the poly nominal face =2xsquare -3x+7K find the value of k About the author Allison
Step-by-step explanation: Answer: ★[tex]\large{ \color{red}\bold{k = – \frac{2}{7} }}[/tex] Step-by-step explanation: [tex]\begin{gathered} \bold{given} \\ \\ \bold{f(x) = 2 {x}^{2} – 3x + 7k} \\ \\ \bold{x = 2 \: \: is \: \: a \: \: zero \: \: f(x)} \\ \\ \bold{f(2) = 0} \\ \\ \bold{f(2) = 2 {(2)}^{2} – 3(2) + 7k} \\ \\ \bold{8 – 6 + 7k = 0} \\ \\ \bold{7k + 2 = 0} \\ \\ \bold{k = – \frac{2}{7} } \\ \end{gathered}[/tex] ✵HOPE IT HELPS ✵ Reply
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★[tex]\large{ \color{red}\bold{k = – \frac{2}{7} }}[/tex]
Step-by-step explanation:
[tex]\begin{gathered} \bold{given} \\ \\ \bold{f(x) = 2 {x}^{2} – 3x + 7k} \\ \\ \bold{x = 2 \: \: is \: \: a \: \: zero \: \: f(x)} \\ \\ \bold{f(2) = 0} \\ \\ \bold{f(2) = 2 {(2)}^{2} – 3(2) + 7k} \\ \\ \bold{8 – 6 + 7k = 0} \\ \\ \bold{7k + 2 = 0} \\ \\ \bold{k = – \frac{2}{7} } \\ \end{gathered}[/tex]
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