Fill in the blank so that 81 x squared plus___x plus 4 is a perfect square trinomial.
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Part 1
Yes, correct! The missing term should be 36. So, the complete expression is 81x^2 + 36x + 4, which is a perfect square trinomial: (9x + 2)^2.
Fill in the blank so that 9 x squared plus___x plus 1 is a perfect square trinomial.
