X square + 1 / x square is equal to 7 find the value of x square - 1 / x square
sasr2210:
i guess ,,,the answer got wrong in 3rd step!!
don't you think so?
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x^2+1/x^2=7
x^2+1=7×x^2
x^2+1=7x^2
1=7x^2-x^2
1=6x^2
1/6=x^2
_______________________
x^2-1/x^2
substituting value of x^2
1/6-1/1/6
1/6-1/6
0
hope it helps you.
mark as brainliest please
x^2+1=7×x^2
x^2+1=7x^2
1=7x^2-x^2
1=6x^2
1/6=x^2
_______________________
x^2-1/x^2
substituting value of x^2
1/6-1/1/6
1/6-1/6
0
hope it helps you.
mark as brainliest please
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