MATH: what is (x²)²? i.e. what is (x squared) squared?
(x * x) * (x * x)
That is x^4.
When solving for an exponent to the power of an exponent, multiple the two exponents.
(xÂ²)Â² is the same as writing
and it literally means, xÂ² multiplied by itself
we know that you add the powers together when multiplying exponents, so you get x^4.
similarly, if you wanted to know what (xÂ²)Â³ was
you would just do
xÂ²*xÂ²*xÂ² = x^6
as this would mean xÂ² multiplied by itself twice
laws of indices: (x^a)^b = x^(ab)
therefore (x^2)^2 = x^(2*2) = x^4
(xÂ²)Â² = x⁴
(xÂ²)Â² = xÂ² * xÂ² = x⁴
(X^a)^b = X^(a * b)