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OpenStudy (anonymous):
Simplify the given expression. (−5 + 3i) • (1 − 2i) −5 − 6i 1 + 13i 2 + i 4 − 5i
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OpenStudy (ranga):
Use FOIL method to multiply the two factors and simplify.
OpenStudy (anonymous):
can you please show me how. im really confused. @ranga
OpenStudy (ranga):
(−5 + 3i)(1 − 2i) = -5*1 + (-5) *(-2i) + (3i)(1) + (3i)(-2i) = -5 +10i + 3i - 6(-1) = 1 + 13i
OpenStudy (anonymous):
thank you so much @ ranga
OpenStudy (ranga):
you are welcome.
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