A pop-up appeared: "Enable script? This will reveal step-by-step solutions for all KA exercises." Leo clicked "Allow." Suddenly, every Khan Academy problem on his screen now had a small glowing eye icon next to it. He hovered over problem 12. A full, color-coded solution unfurled: distribute the exponent, combine like terms, factor the GCF. He copied it, submitted, and got a satisfying green "Correct."