(x^2+6)^2-21=4x^2+24

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Solution for (x^2+6)^2-21=4x^2+24 equation: 



(x^2+6)^2-21=4x^2+24

We move all terms to the left:

(x^2+6)^2-21-(4x^2+24)=0

We get rid of parentheses

-4x^2+(x^2+6)^2-24-21=0

We add all the numbers together, and all the variables

-4x^2+(x^2+6)^2-45=0

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

-4x^2+(x^2+6)^2=45

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