Math, asked by vaishnavi2361, 8 months ago

9(x2+1/x2)-3(x-1/x)-20=0​

Answers

Answered by bvspawan
1

Step-by-step explanation:

9(x4+1/x2)-3(x2-1/x)-20=0

(9x4+9/x2)-(3x2-1/x)-20=0

(9x4+9/x2)-(3x3-x/x2)-20=0

(9x4+9-3x3+x/x2)-20=0

9x2-3x3-20x2+x+9=0

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