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Mathematics 12 Online
OpenStudy (anonymous):

subtract. 6-(-9+6i)-(-1-i)=

Nnesha (nnesha):

same like last one what would be ur first step?

OpenStudy (anonymous):

I tried doing the same process nasha bc i thought they were similar but it didnt work

Nnesha (nnesha):

okay show ur work plz i'll see where u did mistake :=)

OpenStudy (anonymous):

put all like terms together 6, -9, -1 and then 6i, -i

OpenStudy (anonymous):

okay one sec

OpenStudy (anonymous):

|dw:1441038217966:dw|

Nnesha (nnesha):

you didn't distribute \[\huge\rm -(-9+6i)\]

OpenStudy (anonymous):

oh do i need to distribute a negative one?

Nnesha (nnesha):

yes right!

Nnesha (nnesha):

you CAN'T combine like terms without distributing by outside terms

OpenStudy (anonymous):

okay and is it the same for the -(-1-i)

Nnesha (nnesha):

yes right

Nnesha (nnesha):

|dw:1441038698971:dw| you already distributd -(-1+i)

OpenStudy (anonymous):

is the answer 48-7i

Nnesha (nnesha):

hmm nope how did you get that ? :=)

OpenStudy (anonymous):

okay so this is how it started |dw:1441039035100:dw| |dw:1441039412530:dw| |dw:1441039667322:dw|

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