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Popular >

simplify (-5i)(-3i)

Solution

simplify

(- 5 i) (- 3 i)

Solution

- 15

Solution steps

(- 5 i) (- 3 i)

Apply rule:

(- a) (- b) = ab

(- 5 i) (- 3 i) = 5 i 3 i

= 5 i 3 i

Simplify

5 i 3 i : 15 i^{2}

= 15 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 15 (- 1)

Multiply the numbers:

15 (- 1) = - 15

= - 15

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Frequently Asked Questions (FAQ)

What is (-5i)(-3i) ?
The solution to (-5i)(-3i) is -15