Question

Write the solution set of equation (x^4)-26(x^2)+25.

Answer 1

$({x}^{2} - 5) {}^{2} = 16 {x}^{2}$

${x}^{2} - 5 = 4x$

$( \ - b + \sqrt{ { {b}^{2} - 4ac} } ) \div 2a$

from above farmula

we can find the solution...

of the question

the set is{5,-1}