The letter x often symbolizes something unknown, with an air of mystery that can be appealing – just look at Elon Musk with SpaceX, Tesla’s Model X, and now X as a new name for Twitter. You ...

The letter X is key to modern algebra. But no one knows why. Skip to main content. Scientific American. August 10, 2023. 5 min read. The Mysterious Origins of ‘X’ in Algebra.

What unifies algebra is the practice of studying things – like the moves you can make on a Rubik’s cube or the numbers on a clock face you use to tell time – and the way they behave when you ...

Save guides, add subjects and pick up where you left off with your BBC account. In algebra, letters are used to stand for values that can change (variables) or for values that aren’t known ...

The letter “x” often symbolizes something unknown, with an air of mystery that can be appealing. Just look at Elon Musk with SpaceX , Tesla’s Model X and now X as the new name of Twitter .

Having Algebra 1 skills by eighth grade can be crucial for tackling rigorous schoolwork and college admissions. Without Algebra 1, I couldn’t have succeeded in many of my high school math ...