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OpenStudy (anonymous):
add or subtract as indicated and write in standard form (4-8i)+(3+6i)
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OpenStudy (saifoo.khan):
treat i as variables.
OpenStudy (saifoo.khan):
7 -8i +6i 7 -2i
OpenStudy (anonymous):
but do we multiply
OpenStudy (anonymous):
yee thats what i thought thanks!
OpenStudy (saifoo.khan):
Nope, we can't as there is a +ve sign in b/w.
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OpenStudy (saifoo.khan):
welks.
OpenStudy (anonymous):
1-2i
OpenStudy (anonymous):
4-8i+3+6i 4+3+6i-8i 7-2i
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