Question

solve as fast as u can

Answer 1

here is answer see it thanks

Answer 2

x +
$x + \frac{1}{x} = 20$
squaring both sides,

${(x + \frac{1}{x} ) }^{2} = 400$
$( {x}^{2} + { \frac{1}{x} }^{2} + 2 = 400$
${x}^{2} + { \frac{1}{x} }^{2} = 398$
one more time squaring