What are positive and negative numbers? Any number above zero is a positive number and any number below zero is a negative number. Learn about positive and negative numbers and number lines.

This happens when you’remultiplying and dividing. MATT: So negative four times ... you’re subtracting anegative number. So seven minusnegative three, the two negativescombine to give you ...

Complex numbers ... negative in the square root, complex numbers can be used to simplify the zero. Complex numbers are used in electronics and electromagnetism. A single complex number puts ...