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Add or Subtract (80−−80)+(45+−320)( \sqrt { 80 } - \sqrt { - 80 } ) + ( 4 \sqrt { 5 } + \sqrt { - 320 } )

Question 160

Multiple Choice

Add or subtract.
- (80−−80) +(45+−320) ( \sqrt { 80 } - \sqrt { - 80 } ) + ( 4 \sqrt { 5 } + \sqrt { - 320 } )


A) 85+458 \sqrt { 5 } + 4 \sqrt { 5 }
B) 85−4i58 \sqrt { 5 } - 4 \mathrm { i } \sqrt { 5 }
C) 85+4i58 \sqrt { 5 } + 4 i \sqrt { 5 }
D) 85+12i58 \sqrt { 5 } + 12 i \sqrt { 5 }

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