Simplify the number using the imaginary unit i. (sqrt)of -28

•2(sqrt)-7
•-2 (sqrt)-7
•i (sqrt)28
•2i (sqrt)7

2 answers

sqrt ( - 28 ) =

sqrt ( - 4 * 7 ) =

sqrt ( - 1 * 4 * 7 ) =

sqrt ( - 1 ) * sqrt ( 4 ) * sqrt ( 7 ) =

i * 2 * sqrt ( 7 ) =

2 i sqrt ( 7 )
1. D. 2i sqrt 7
2. B. 4, 2
3. B. 11-2i
4. C. 20-4i
5. A. 31+i/26
6. C. 1 i sqrt 9

took the quiz, 100% ^^
Similar Questions
  1. Evaluate sqrt7x (sqrt x-7 sqrt7) Show your work.sqrt(7)*sqrt(x)-sqrt(7)*7*sqrt(7) sqrt(7*x)-7*sqrt(7*7) sqrt(7x)-7*sqrt(7^2)
    1. answers icon 1 answer
    1. answers icon 1 answer
  2. 15sqrt8x^15/5sqrt2x^4remember that sqrt(a)/sqrt(b) = sqrt(a/b) simplify the inside. also notice that sqrt(x^11) = sqrt(x^10) *
    1. answers icon 0 answers
  3. sqrt 6 * sqrt 8also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So you can see the steps — sqrt 6 * sqrt 8 = sqrt 48 sqrt 7 *
    1. answers icon 0 answers
more similar questions