What is (2-15i)-(4+5i) ?

The solution to (2-15i)-(4+5i) is -2-20i

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simplify (2-15i)-(4+5i)

simplify

(2 - 15 i) - (4 + 5 i)

- 2 - 20 i

Solution steps

(2 - 15 i) - (4 + 5 i)

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

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

= (2 - 4) + (- 15 - 5) i

Simplify

(2 - 4) + (- 15 - 5) i : - 2 - 20 i

= - 2 - 20 i

lo g_{10} (70)

(x - 4) (x + 6)

2 x \cdot 2

(x + 1) (x - 2) (x + 3)

lo g_{\frac{1}{6}} (36)