What is (-4-7i)-(4+5i)-(2-i) ?

The solution to (-4-7i)-(4+5i)-(2-i) is -10-11i

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simplify (-4-7i)-(4+5i)-(2-i)

simplify

(- 4 - 7 i) - (4 + 5 i) - (2 - i)

- 10 - 11 i

Solution steps

(- 4 - 7 i) - (4 + 5 i) - (2 - i)

Apply rule:

(a) = a

(- 4 - 7 i) = - 4 - 7 i

= - 4 - 7 i - (4 + 5 i) - (2 - i)

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

- (2 - i) = - 2 - (- 1) i

= - 4 - 7 i - 4 - 5 i - 2 - (- 1) i

Group like terms

= - 7 i - 5 i - (- 1) i - 4 - 4 - 2

Add similar elements:

- 7 i - 5 i - (- 1) i = - 11 i

= - 11 i - 4 - 4 - 2

Subtract the numbers:

- 4 - 4 - 2 = - 10

= - 11 i - 10

Rewrite in standard complex form:

- 10 - 11 i

= - 10 - 11 i

\frac{x ^{2} - 2 x}{3 x - 6}

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