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Popular >

simplify (2-7i)(-10-10i)

Solution

simplify

(2 - 7 i) (- 10 - 10 i)

Solution

- 90 + 50 i

Solution steps

(2 - 7 i) (- 10 - 10 i)

Apply complex arithmetic rule:

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

= (2 (- 10) - (- 7) (- 10)) + (2 (- 10) - 7 (- 10)) i

Simplify

(2 (- 10) - (- 7) (- 10)) + (2 (- 10) - 7 (- 10)) i : - 90 + 50 i

= - 90 + 50 i

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Frequently Asked Questions (FAQ)

What is (2-7i)(-10-10i) ?
The solution to (2-7i)(-10-10i) is -90+50i