Xx4+9=Xx2-1

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Solution for Xx4+9=Xx2-1 equation: 



XX4+9=XX2-1

We move all terms to the left:

XX4+9-(XX2-1)=0

We get rid of parentheses

XX4-XX2+1+9=0

We add all the numbers together, and all the variables

XX4-XX2+10=0

We move all terms containing X to the left, all other terms to the right

XX4-XX2=-10

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