In any equation there is a variable (usually x). In a quadratic equation there is a lot involved.
-B (+or-) sqrt of b^2 - 4 x A x C
________________________ divide it by
2 x A
There is usually an original equation that looks like: Ax^2 + Bx + C = 0 Use the variables from the equation to the left to fill the upper equation. (You can also look up a better formula if confused).
It might be hard at first to find the hundreds place. The answer is C:722,357,000
If he took x trips last year
3x+1=7
3x=6
x=2
he took 2 trips last year
Answer:
12 m
sorry if its wrong i did my best
