Question

Solve u^2= -36 where U is a real number.Simplify you answer as much as possible.If there are more than one solution separate them with commas.If there no solution just put that as the answer u=

Answer 1

Step 1

Given;

`u^2=-36`

Required; To find the value of u

Step 2

Find the value of u

`\begin{gathered} Take\text{ the square root of both sides} \\ √(u^2)=√(-36) \\ u=\pm(√(-1)*√(36))\text{ but }√(-1)=i \\ u=\pm6i \end{gathered}`

+6i and -6i are not real numbers. Therefore the answer will be;

`No\text{ solution}`