In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...

Integration is the inverse process to differentiation. Some people call it anti-differentiation. Instead of multiplying the power at the front and subtracting one from the power, we add one to the ...