solve this equation X⁴+10X²+9=0
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Let y=x^2
y^2+10y+9=0
y^2+y+9y+9=0
y (y+1)+9 (y+1)=0
(y+1)(y+9)=0
y=-1 or y=-9
x^2=-1 or x^2=-9
x=+or - root (-1) or x=+or -root (-9)
x=+or - i or x=+or - 3i
[i = imaginary number ]
......I hope it will help you. .....
.....ask me if there is any problem. .....
......Please make me your brainiest. ...
y^2+10y+9=0
y^2+y+9y+9=0
y (y+1)+9 (y+1)=0
(y+1)(y+9)=0
y=-1 or y=-9
x^2=-1 or x^2=-9
x=+or - root (-1) or x=+or -root (-9)
x=+or - i or x=+or - 3i
[i = imaginary number ]
......I hope it will help you. .....
.....ask me if there is any problem. .....
......Please make me your brainiest. ...
Ashish0211:
sorry it is wrong...i cant make you my brainiac ill make you my beech instead
What is wrong in it
Please tell me the correct answer.
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