IDNLearn.com provides a user-friendly platform for finding answers to your questions. Get step-by-step guidance for all your technical questions from our knowledgeable community members.
Answer:
[tex]9 \times 9 = 81 \\ 8 \times 8 = 64 \\ 7 \times 7 = 49 \\ 6 \times 6 = 36 [/tex]
it's square root number you multiple times by 2