What is (-1-7i)+(4+8i) ?

The solution to (-1-7i)+(4+8i) is 3+i

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simplify (-1-7i)+(4+8i)

simplify

(- 1 - 7 i) + (4 + 8 i)

3 + i

Solution steps

(- 1 - 7 i) + (4 + 8 i)

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

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

= (- 1 + 4) + (- 7 + 8) i

Simplify

(- 1 + 4) + (- 7 + 8) i : 3 + i

= 3 + i

(7 r^{2} - 6 r - 6) (2 r - 4)

4 x^{3}

- 8 \cdot (- 8)

\frac{12}{80}

2 \times \frac{3}{2}