Question

What is 2 radical 15 squared

Answer 1

`2√(15^2)=2\cdot15=30\\\\\\2√(15^2)=2\cdot\left(15^2\right)^(1)/(2)=2\cdot15^{2\cdot(1)/(2)}=2\cdot15=30`




`\left(2√(15)\right)^2=2^2\cdot\left(√(15)\right)^2=4\cdot15=60\\\\\left(2√(15)\right)^2=2^2\cdot\left(√(15)\right)^2=4\cdot\left(15^(1)/(2)\right)^2=4\cdot15^{(1)/(2)\cdot2}=4\cdot15^1=4\cdot15=60`