Okay I think I've finally figured it out. I'm a dolt. But since I'm a dolt, I might as well post why I'm a dolt due to the order of operations.
Step 2A: Simply divide every single number by -10. So the method to get to Step 3 becomes:
a) (-30/-10) which becomes positive 3.
b) Then...
Hi - I'm trying to figure out the specific steps in a math textbook. I'm trying to figure out how the textbook did its algebra here with a quadratic formula to find an inverse of a function:
Sadly there's a step I'm supposed to know by now in the simplification algebra in there 3 steps...