Question by Summer Clouds - Discuss with MathYouLike

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26/07/2017 at 09:02

The value of x such that \(2^3.x^2=32\) is........?

List of answers

Hiệp Dương 26/07/2017 at 10:57

We have : 2³ . x² = 32

=> 8.x² = 32

=> x² = 4

=> x = -2;2
Lê Quốc Trần Anh Coordinator 26/07/2017 at 09:04

\(2^3.x^2=32\)

<=> \(8.x^2=32\)

<=> \(x^2=32:8=4\)

We see: \(2^2=4\) => \(x=2\)

So the value of \(x\) is: \(2\)
Dao Trong Luan 27/07/2017 at 16:29

2³ . x² = 32

=> 2³.x² = 2⁵

=> x² = 2²

=> x² = 4

=> x = \(\pm2\)
Phan Thanh Tinh Coordinator 26/07/2017 at 10:27

Lê Quốc Trần Anh,you missed x = -2

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