What is (-5-8i)-(7-4i) ?

The solution to (-5-8i)-(7-4i) is -12-4i

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simplify (-5-8i)-(7-4i)

simplify

(- 5 - 8 i) - (7 - 4 i)

- 12 - 4 i

Solution steps

(- 5 - 8 i) - (7 - 4 i)

Group the real part and the imaginary part of the complex number

(a + bi) - (c + d i) = (a - c) + (b - d) i

= (- 5 - 7) + (- 8 - (- 4)) i

Simplify

(- 5 - 7) + (- 8 - (- 4)) i : - 12 - 4 i

= - 12 - 4 i

2 i + j - 2 k

\frac{1}{1 + 3 i} + \frac{1}{1 + 7 i}

\frac{25}{65}

\frac{5 + i}{6 + i}

82 \cdot 510