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OpenStudy (anonymous):
eval the expression and write in the form a+bi . (sqrt3-sqrt-4)(sqrt6-sqrt-8) and show me the steps pls
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OpenStudy (anonymous):
u can rewrite sqrt(-4) as 2i, where i=sqrt(-1). also sqrt(-8) would be 2*sqrt(2)i. then u just expand the brackets normally. keep in mind that i squared=-1
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