Question

solve 1 upon 7 ki power 4 minus 2 X equal to under root 7​

Answer 1

Answer:

$\large \boxed{\boxed{\boxed{\bold{x = \dfrac{1 - 2401\sqrt{7}}{4802}}}}}$

Step-by-step explanation:

$\dfrac{1}{7^4} - 2x = \sqrt{7}\\\\\\\implies \dfrac{1}{2401} - 2x = \sqrt{7}\\\\\\\implies 2x = \dfrac{1}{2401} - \sqrt{7}\\\\\\\implies 2x = \dfrac{1 - 2401\sqrt{7}}{2401}\\\\\\\implies x = \dfrac{1 - 2401\sqrt{7}}{2401 \times 2}\\\\\\\implies \large \boxed{\boxed{\boxed{\bold{x = \dfrac{1 - 2401\sqrt{7}}{4802}}}}}$