Multiple Choice

An industrial engineer is verifying the layout of a square-shaped storage facility with a total area represented by the expression 36x2+84xy+49y236x^2 + 84xy + 49y^2. To factor this expression using the perfect square trinomial pattern a2+2ab+b2a^2 + 2ab + b^2, the engineer must first identify the correct values for 'a' and 'b'. Which of the following correctly identifies these terms?

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Updated 2026-04-20

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