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Importance of Brackets

Simplify: -...

Question

Simplify: $(- 1)^{19} + (- 1)^{20} + (2)^{5}$

A

34

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B

32

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C

30

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D

0

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Solution

The correct option is B $32$
$(- 1)^{19} + (- 1)^{20} + (2)^{5}$
$= (- 1) + (1) + 2 \times 2 \times 2 \times 2 \times 2$
$= 32$

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Importance of Brackets

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