What is (9+3i)-(-2-7i) ?

The solution to (9+3i)-(-2-7i) is 11+10i

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simplify (9+3i)-(-2-7i)

simplify

(9 + 3 i) - (- 2 - 7 i)

11 + 10 i

Solution steps

(9 + 3 i) - (- 2 - 7 i)

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

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

= (9 - (- 2)) + (3 - (- 7)) i

Simplify

(9 - (- 2)) + (3 - (- 7)) i : 11 + 10 i

= 11 + 10 i

2 x^{3} \cdot 18 x^{5}

\frac{5 i}{6 + 8 i}

\frac{2}{- 2 - 5 2}

(k x)^{2}

\frac{b ^{3} - a ^{3}}{3 ( b - a )}