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If z(1)=3 -2i ,z(2) = 2-i and z(3) = 2+...

If ` z_(1)=3 -2i ,z_(2) = 2-i and z_(3) = 2+ 5i ` then find ` z_(1) + z_(2) - 2z_(3)`

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`z_(1)+z_(2)-2z_(3) = ( 3-2i) + (2-i) -2 ( 2+ 5i) `
= [ ( 3-2i) + ( 2 -i) - ( 4 + 10i)
` [ ( 3+2) + I ( -2 -1)] - ( 4 + 10i)`
( 5-3i) - ( 4 + 10i)
= ( 5-4) + I ( -3 -10) ltbr, = 1 -13 I
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