So, we corrected a question from a test today at school, and I don't see how my teacher can claim that (above right). The way I see it, the first binomial formula should be used. I mean, sure, it solves with square root and squared, but the binomial formulas take precedence, right? I just don't…
Hi, I'm writing a math test tomorrow and I have one last question: (imagine the / as a root symbol) ( /12 + /3 ) ² = (/12) ² + 2 × /12 × /3 + (/3)² = 12 + 2 × 6 + 3 = 27 Why doesn't the second step say 12 +…
All I know is that he somehow became a villain because he couldn't find the square root of negative 1 and therefore turned away from physics. I know that sounds stupid.
Hey, I just don't understand why the result is 3a and not 3|a|. You can substitute – and + for a in the square root of 9 a to the power of 2, so why without absolute values? It would be nice if someone could explain.
I'm writing a math test on Friday and am currently studying for it. I've noticed that I'm not exactly sure how to calculate a particular problem. Or rather, I have the correct answer, but I'm not sure about the method. I'm enclosing a photo of the problem. It is a square root calculation
If you divide an odd square number by 4, the remainder is always 1. This is how it says in my school book with the example 9 -> 9:4 = 2 remainder 1 But what about, say, 11? The remainder is 3?
How can I find the root of a number less than 1? For example, the number 0.65
Hello, I look at the solutions and I can't figure out how to get √13… Best regards
Unfortunately, I forgot how to calculate this. Can someone tell me the key sequence to get this result? It's about an aquarium, and Bruno is a killer carp. Thanks.
A month ago, I had a tooth opened because I've had a very swollen cheek for the past month. The doctor at the clinic told me that this tooth looked suspicious (hole caused by caries). In the end, it wasn't the tooth, and now I have to have an MRI to determine the cause of…