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3 years ago

Which set of numbers is not closed under multiplication ?

Mathematics

2 answers:

kodGreya [7K]3 years ago

4 0

Answer:

D). irrational numbers

Step-by-step explanation:

The irrational numbers are the set of number which can NOT be written as a ratio (fraction). Decimals which never end nor repeat are irrational numbers. Irrational numbers are "not closed" under addition, subtraction, multiplication or division.

vitfil [10]3 years ago

4 0

D.)irrational numbers

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3 years ago

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3 years ago

(9x+2)(4x^2+35x-9)=0

pychu [463]

$(9x+2)*(4x^2+35x-9)=0$

we can make this...

$9x+2=0$

and

$4x^2+35x-9=0$

then...

$9x+2=0$

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$x=\frac{-35\pm\sqrt{1369}}{8}$

$x=\frac{-35\pm37}{8}$

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I'm sure about my answer, don't matter the order...

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3 years ago

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