What is (7-10i)-(-9-10i) ?

The solution to (7-10i)-(-9-10i) is 16

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simplify (7-10i)-(-9-10i)

simplify

(7 - 10 i) - (- 9 - 10 i)

16

Solution steps

(7 - 10 i) - (- 9 - 10 i)

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

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

= (7 - (- 9)) + (- 10 - (- 10)) i

Simplify

(7 - (- 9)) + (- 10 - (- 10)) i : 16

= 16

(3 - t)^{3}

(x + 4) (x^{2} + 3 x + 2)

\frac{6}{1}

\frac{3}{21}