What is (-2+7i)-(-11-4i) ?

The solution to (-2+7i)-(-11-4i) is 9+11i

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simplify (-2+7i)-(-11-4i)

simplify

(- 2 + 7 i) - (- 11 - 4 i)

9 + 11 i

Solution steps

(- 2 + 7 i) - (- 11 - 4 i)

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

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

= (- 2 - (- 11)) + (7 - (- 4)) i

Simplify

(- 2 - (- 11)) + (7 - (- 4)) i : 9 + 11 i

= 9 + 11 i

z^{3} - 1

\frac{116500}{12}

4 (a + h)^{2}

6 i^{3} - 4 i^{5}

27 - 102