Question

o dobro de 2x a metade de x quadrado de x triplo de 2x a terça parte de 2x do cubo de 2x

Answer 1

a) o dobro de 2x:

2.2x = 4x

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b) a metade de 2x:

2x . 1 = 2x = x
----- ------
2 2

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c) o quadrado de 2x:

(2x)² = 2x.2x = 4x²

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d) o triplo de 2x:

3.2x = 6x

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e) a terça parte de 2x:

2x . 1 = 2x
----- ------
3 3

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f) o cubo de 2x:

(2x)³ = 2x.2x.2x = 8x³