Question

$3n \times 9n + 1 \div (3n - 1 \times 9n - 1)$
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Answer 1

Answer:

$3n \times 9n + 1 \div (3n - 1 \times 9n - 1) \\ =3n \times9n + 1 \div 5 {n}^{2} \\ = 27 {n}^{2} + 1 \div5 {n}^{2} \\ = 28 {n}^{2} \div 5 {n}^{2} \\ = 5.6$

5.6 is correct answer

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