"Even the +, −, =, and x signs we take for granted only came into widespread use in the 17th century. Which means that the earlier algebraists we know of … all had expressed their equations mostly in ...

Make sure you are confident in calculating with negative numbers, which is a skill often needed to solve equations. To solve the equation, do the inverse operation. The inverse of multiplying by 12 is ...

Imaginary numbers were once seen as impossible, but they became essential tools in solving real mathematical problems. Google issues warning to billions of Gmail users over password hack Man shines ...