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Makovka662 [10]
2 years ago
9

Factor the expression 84+28

Mathematics
1 answer:
harkovskaia [24]2 years ago
7 0

Answer:

112

Step-by-step explanation:

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7 0
3 years ago
Is sqrt(25a^2/4) the same as sqrt(25a^2)/sqrt(4)?
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LHS\\ \\ =\sqrt { \frac { 25{ a }^{ 2 } }{ 4 }  } \\ \\ ={ \left( \frac { 25{ a }^{ 2 } }{ 4 }  \right)  }^{ \frac { 1 }{ 2 }  }

\\ \\ =\frac { { \left( 25{ a }^{ 2 } \right)  }^{ \frac { 1 }{ 2 }  } }{ { 4 }^{ \frac { 1 }{ 2 }  } } \\ \\ =\frac { \sqrt { 25{ a }^{ 2 } }  }{ \sqrt { 4 }  } \\ \\ =RHS
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