Question

It fractional equation should be solve in quadric equation
x+ 7/x =9

Answer 1

0.86, 8.14

Explanation:

• x+ 7/x =9, where x≠0
• x^2+7= 9x multiply each term by x to get rid of fraction
• x^2 - 9x + 7= 0 solving as normal quadratic equation
• x= (9 ± √ (9^2 - 4*7)) / 2
• x= (9 ± √53) /2
• x≈ 0.86
• x≈ 8.14