| A | B |
|---|
| a (b+c) equals | ab + ac |
| (a+b) squared equals | a squared + 2aB + B squared |
| (a+b) times (c+d) equals | ac + ad + bc + bd |
| (a-b) squared equals | a squared (minus) 2ab (plus) b squared |
| (a+b) cubed equals | a cubed (plus) 3a squared b (plus) 3a b squared (plus) b cubed |
| (a-b) cubed equals | a cubed (minus) 3a squared b (plus) 3a b squared (minus) b cubed |
| log (xy) = | Log x + Log y |
| Log x/y = | Log x - Log y |
| Log x to the power of r = | r log x |
| Log x = | n (double sided arrow) x = 10 to n power (common log) |
| Log base a x + | n (double arrow) x = a to n power ( log to the base a) |
| Ln x = | n (double arrow) x =e to n power (natural log) |
| b in the striaght line equation means | y intercept |
| e = | 2.71828183 |
| equation of a straight line (one equation) | y - y (1 below y) = m (x - x (1 below x) |
| m means | slope |
| slope = | rise over run or rise/run |
| y-y (1 below y) means | rise |
| x-x (1 below x) means | run |
| equation of a straight line (another equation | y=mx + b |
