Correct 241.34(3 x 10-\(^3\))\(^2\) to 4 significant figures
Factorize completely 81a\(^4\) - 16b\(^4\)
Find the value of (4\(^{\frac{1}{2}}\))\(^6\)
If x\(^2\) + 4 = 0, then x ?
Simplify \((216^{{\frac{1}{3}}})^{-2}\)