Explain why -4 is not a real number but -8 is two equations below of what they look like √( - 4) \sqrt[3]{ - 8}

Question

Explain why -4 is not a real number but -8 is two equations below of what they look like


`√( - 4)`

`\sqrt[3]{ - 8}`

Answer 1

-4 isn't a real number because there is no square root of -4. However, there is a cube root of -8, because -2 * -2 * -2 = -8.