Imaginary Numbers i
What is ?
In other words what number multiplied by itself gives us 9. We would say the answer is 3 but as - multiplied by - means + .
So -3 * -3 =9 also. Therefore the answer is -3, +3.
Work out the ones below and then move your mouse over them for an answer
Now what about ?
It is not a perfect square like before but we can break it up into the square root of the factors of 32
this can be further broken down into . This is
Try the following ones
Finally what about
We can break this down into because