anonymous
  • anonymous
write the expression as a complex number in standard form. (2+4i)+(6-i)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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mathstudent55
  • mathstudent55
Here, the operation to the left of the second set of parentheses is plus. There is no operation to the left of the first set of parentheses. This means, step 1 is drop both sets of parentheses. Step 2 is add like terms.
anonymous
  • anonymous
so it would be 8-3i
mathstudent55
  • mathstudent55
4i - i is????

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mathstudent55
  • mathstudent55
2 + 6 = 8, you're correct there
anonymous
  • anonymous
because its a negative 3i i subtracted it
mathstudent55
  • mathstudent55
4i is positive -i is negative 4i - i is similar to 4 - 1. What is 4 - 1?
anonymous
  • anonymous
3
mathstudent55
  • mathstudent55
Right, so just like 4 - 3 = 1, so 4i - i = 3i Remember that i = 1i, so 4i - i = 4i - 1i = 3i
anonymous
  • anonymous
so it would be 8+3i
eSpeX
  • eSpeX
Yes.
anonymous
  • anonymous
thank you can you help me with another problem

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