Question

Evaluate the following expression and express the answer as a rational number in its standard form.

(2−1+7+3−1)−1

Answer 1

$(2 - 1 + 7 + 3 - 1) - 1 \\ 10 - 1 \\ 9 \\ Standrd \: form = 9 \times {10}^{0}$

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