This week in pre calc 11 we learned about radical expressions and equations and finding non permissible values in radicals and learning how to tell if the equation has no solution which comes in handy when solving and also helps confirm that you didn’t get a wrong answer you just got an answer that leaves the radical an imaginary number but you need to catch it, which leads me to my mistake.
during a test there was a section where we had to take a quadratic equation and state the npvs and find the answer and for both i got 5 but what i didnt catch because maybe i was stressed out by the environment of a test is that the numbers being the same meant that there were no solutions and i lost some marks because i didnt catch that the answer was imaginary
it is very important to know how to identify imaginary solutions because if you dont you may think that your algebra was wrong or maybe not think anything of the npvs and the answer being the same. if you arent able to identify if the answer is allowed or not you may think you did something wrong