What is (3+10i)-(-12-8i) ?

The solution to (3+10i)-(-12-8i) is 15+18i

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simplify (3+10i)-(-12-8i)

simplify

(3 + 10 i) - (- 12 - 8 i)

15 + 18 i

Solution steps

(3 + 10 i) - (- 12 - 8 i)

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

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

= (3 - (- 12)) + (10 - (- 8)) i

Simplify

(3 - (- 12)) + (10 - (- 8)) i : 15 + 18 i

= 15 + 18 i

9 \times 7

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5 + (- 5)