Get the information you need with the help of IDNLearn.com's expert community. Get comprehensive answers to all your questions from our network of experienced experts.
1) 20+21 =41. Since 20^2+21^2 both have ^2 on top. The ^2 would stay the same. So that means the answer would be 41^2 for the first one which is why it is incorrect
2)Same for this. 4^2+5^2= 9^2
3)a^2+b^2 = ab^2 because since a and b are different letters/variables you cannot combine them therefore it is just ab.
4) (-1)^2 = 1 because -1 multiply by -1 again you would get positive 1. Next you do 1+0^2 = 1. Because 0^2 is just 0 because 0times 0 =0 so 1+0 = 1
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. Thank you for visiting IDNLearn.com. We’re here to provide accurate and reliable answers, so visit us again soon.
