Question

Solve: 18/9- root(2,81)
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Answer 1

With the order of operations, you must do the division (18/9) first. Then do the square root. Then do the subtraction.

`\begin{aligned}(18)/(9) - √(81) &= 2-√(81)\\[0.5em]&=2-9\\[0.5em]&=-7\end{aligned}`

Answer 2

-7

Explanation:

`(18 / 9) - √(81 ) \\ \\ 2 - 9 \\ - 7`