Expand using identities (3x+1/3x)2
Answers
Answered by
23
Answer:
(3x+1/3x)²
(3x)² + 2 * 3x * 1/3x + (1/3x)² -------- (a+b)^2 = a^2 + 2ab + b^2
9x² + 2x² + 1/9x²
Answered by
5
Answer:
9x^2 + 2 + 1/9x^2
Step-by-step explanation:
(3x + 1/3x)^2 has to be expanded using the identitiy (a + b) ^ 2.
(3x)^2 + 2 (3x) (1/3x) + (1/3x)^2
9x^2 + (6x * 1/3x) + 1/9x^2
9x^2 + 2 + 1/9x^2.
The answer from the other guy is incorrect, please don't answer if you are incompetent.
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