kieuphuonguyennguyen kieuphuonguyennguyen

02-07-2020
Mathematics

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(√x + 2)(√x - 2) = 0 .find x

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rebeccarayshma rebeccarayshma

02-07-2020

Answer:

[tex]( \sqrt{x} + 2)( \sqrt{x} - 2) = 0[/tex]

[tex]( \sqrt{x} ) {}^{2} - 2 {}^{2} = 0[/tex]

[tex]x - 4 = 0[/tex]

[tex]x = 4[/tex]

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