The trick was to use what are called "complex numbers," which have a "real" part and an "imaginary" part. The imaginary part is a multiple of the number i , "the square root of minus one," which ...

When solving an equation it is important to find the value of one letter. Let's solve the equation 3 x + 4 = 10 To remove the + 4 we complete the inverse (opposite) operation by subtracting the 4.

Imaginary numbers, also called complex numbers, are used in real-life applications, such as electricity, as well as quadratic equations.In quadratic planes, imaginary numbers show up in equations ...

Imaginary numbers are what you get when you take the square root of a negative number, and they have long been used in the most important equations of quantum mechanics, the branch of physics that ...