IDNLearn.com makes it easy to find accurate answers to your specific questions. Our experts are available to provide in-depth and trustworthy answers to any questions you may have.
Answer:
a option
Step-by-step explanation:
(a + b)² = a² + b² + 2ab
(a + b)² = 64 + 16
(a + b)² = 80
Hope it helps.