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how to check algebraic equations?

So, i got a different cubic formula for the depressed equation than that was there in the standard formula from a book. y3+fy+g=0 has the solution

(g+g2/4f)1/3+(gg2/4f)1/3

\left{y : -\frac{f}{3 \, {\left(-\frac{1}{2} \, g + \frac{1}{6} \, \sqrt{\frac{4}{3} \, f^{3} + 9 \, g^{2}}\right)}^{\frac{1}{3}}} + {\left(-\frac{1}{2} \, g + \frac{1}{6} \, \sqrt{\frac{4}{3} \, f^{3} + 9 \, g^{2}}\right)}^{\frac{1}{3}}\right}

how to check algebraic equations?

So, i got a different cubic formula for the depressed equation than that was there in the standard formula from a book. y3+fy+g=0 has the solution

(g+g2/4f)1/3+(gg2/4f)1/3

\left{y : -\frac{f}{3 \, {\left(-\frac{1}{2} \, g + \frac{1}{6} \, \sqrt{\frac{4}{3} \, f^{3} + 9 \, g^{2}}\right)}^{\frac{1}{3}}} + {\left(-\frac{1}{2} \, g + \frac{1}{6} \, \sqrt{\frac{4}{3} \, f^{3} + 9 \, g^{2}}\right)}^{\frac{1}{3}}\right}

So I want to check the algebraic equivalence of these two equations step by step, and how I can convert the first equation into the second, as they are both the same.

This is like checking algebra formulas like (a+b)2=a2+b2+2ab

how to check algebraic equations?

So, i got a different cubic formula for the depressed equation than that was there in the standard formula from a book. y3+fy+g=0 has the solution

(g+g2/4f)1/3+(gg2/4f)1/3

$ \left{y \left\{y : -\frac{f}{3 \, {\left(-\frac{1}{2} \, g + \frac{1}{6} \, \sqrt{\frac{4}{3} \, f^{3} + 9 \, g^{2}}\right)}^{\frac{1}{3}}} + {\left(-\frac{1}{2} \, g + \frac{1}{6} \, \sqrt{\frac{4}{3} \, f^{3} + 9 \, g^{2}}\right)}^{\frac{1}{3}}\right} g^{2}}\right)}^{\frac{1}{3}}\right\} $

So I want to check the algebraic equivalence of these two equations step by step, and how I can convert the first equation into the second, as they are both the same.

This is like checking algebra formulas like (a+b)2=a2+b2+2ab(a+b)2=a2+b2+2ab If nothing else, i want to just check True or False, just like with numbers, but equations instead.

how to check algebraic equations?

So, i got a different cubic formula for the depressed equation than that was there in the standard formula from a book. y3+fy+g=0 has the solution

$ ({-g+\sqrt {g^2/4-f} {g^2/4+f^3/27} })^{1/3} + ({-g-\sqrt {g^2/4-f} {g^2/4+f^3/27} })^{1/3} $

{y:f3(12g+1643f3+9g2)13+(12g+1643f3+9g2)13}

So I want to check the algebraic equivalence of these two equations step by step, and how I can convert the first equation into the second, as they are both the same.

This is like checking algebra formulas like (a+b)2=a2+b2+2ab If nothing else, i want to just check True or False, just like with numbers, but equations instead.