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Calculate the value
Answer
$2$
Calculate the expression
$\sqrt{ \color{#FF6800}{ 28 } } \color{#FF6800}{ \div } \sqrt{ \color{#FF6800}{ 7 } }$
$ $ The multiplication and division of the square root of the same exponent is the same as the square root of the same operation $ $
$\sqrt{ \color{#FF6800}{ 28 } \color{#FF6800}{ \div } \color{#FF6800}{ 7 } }$
$\sqrt{ \color{#FF6800}{ 28 } \color{#FF6800}{ \div } \color{#FF6800}{ 7 } }$
$ $ Divide $ 28 $ by $ 7$
$\sqrt{ \color{#FF6800}{ 4 } }$
$\sqrt{ \color{#FF6800}{ 4 } }$
$ $ Organize the part that can be taken out of the radical sign inside the square root symbol $ $
$\color{#FF6800}{ 2 }$
Solution search results
The rationalizing factor of \sqrt{23} is
$°$ $Options^{°}$ $0$
A 24
23
C \sqrt{23}
D None of these
7th-9th grade
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