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Popular >

simplify (2+5i)(-1+5i)

Solution

simplify

(2 + 5 i) (- 1 + 5 i)

Solution

- 27 + 5 i

Solution steps

(2 + 5 i) (- 1 + 5 i)

Apply complex arithmetic rule:

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

= (2 (- 1) - 5 \cdot 5) + (2 \cdot 5 + 5 (- 1)) i

Simplify

(2 (- 1) - 5 \cdot 5) + (2 \cdot 5 + 5 (- 1)) i : - 27 + 5 i

= - 27 + 5 i

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Frequently Asked Questions (FAQ)

What is (2+5i)(-1+5i) ?
The solution to (2+5i)(-1+5i) is -27+5i