mathisfun13
  • mathisfun13
Two students solved the following problem in different ways. Who is correct and why? Explain the mistake made by the student who has the wrong answer. √-2*√-8=i√2*i√8 =i2√16 =-1*4 =-4 Eddie's answer is -4 √-2*√-8=√16=4 stevie's answer is 4
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
|dw:1371435823989:dw|
anonymous
  • anonymous
eddie cause hes a lad
OakTree
  • OakTree
Stevie is wrong. You need to factor out the negative from the radicals before you multiply, just because only positive numbers can be multiplied under radicals.

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anonymous
  • anonymous
|dw:1371435922601:dw|
mathisfun13
  • mathisfun13
so why is eddie correct?
OakTree
  • OakTree
Because he DID factor out the negatives.
mathisfun13
  • mathisfun13
what mistake did stevie make than
OakTree
  • OakTree
He DIDN'T factor out the negatives.

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