SOLUTION: I just want to check my answer. Im supposed to express {{{ 7 sqrt (-88) }}} in terms of 'i'. So would my answer be {{{ -28 +- i sqrt (22) }}}

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: I just want to check my answer. Im supposed to express {{{ 7 sqrt (-88) }}} in terms of 'i'. So would my answer be {{{ -28 +- i sqrt (22) }}}      Log On


   

Question 700687: I just want to check my answer. Im supposed to express +7+sqrt+%28-88%29+ in terms of 'i'. So would my answer be +-28+%2B-+i+sqrt+%2822%29+
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
7 sqrt (-88)
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= 7* sqrt(-4*22)
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= 7*sqrt(-4)*sqrt(22)
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= 7*2i*sqrt(22)
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= 14sqrt(22)i
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Cheers,
Stan H.
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