How do you simplify $(2 + 7 i) - 9 + (4 - 6 i)$ $(2+7i)-9+(4-6i)$ ?

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Answer 1 · 2016-08-14T18:37:25

$- 3 + i$ $-3+i$

We simply separate the real and imaginary parts of the complex number, and add appropriately:

$(2 + 7 i) - 9 + (4 - 6 i)$ $(2+7i)-9+(4-6i)$ $=$ $=$ $(2 - 9 + 4) + i (7 - 6) = - 3 + i$ $(2-9+4) +i(7-6)=-3+i$

How do you simplify (2+7i)−9+(4−6i)(2+7i)-9+(4-6i)?