| That's a good question. Historic human societies without algebra somehow had working bean counting. Using a credit card isn't very abstract. You only have to use the concrete specific values in your situation, and not solve some generality. Moreover, I don't think I had to ever square anything, let alone, cube, when reckoning over credit card transactions. Or find the roots of a polynomial, or do anything with polynomials. I'm not saying that the intuitions gained from algebra are not relevant, mind you. |
To use a credit card responsibly you need to understand the concept of exponential growth, or you might accidentally turn a manageable $500 debt into a burdensome $5000 debt. Same goes for understanding good debt (mortgages) vs bad debt.
It might not be solving a polynomial per se, but I don't see how you get to understanding exponential equations without at least understanding algebra.