Question

12. Add: (11a + 6b)² and (11a - 6b)²​

Answer 1

Answer:

(11a+6b)^2+(11a-6b)^2

(11a)^2+2*11*a*6*b+(6b)^2

121a^2+132ab+36b^2+121a^2-132ab+36b^2

242(2a^2)+72(2b^2)

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