What is simplify-3i(-5i) ?

The solution to simplify-3i(-5i) is -15

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simplify-3i(-5i)

simplify

- 3 i (- 5 i)

- 15

Solution steps

- 3 i (- 5 i)

Apply rule:

- a (- b) = ab

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

= 3 i 5 i

Multiply the numbers:

3 \cdot 5 = 15

= 15 ii

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 15 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 15 (- 1)

Multiply the numbers:

15 (- 1) = - 15

= - 15

\frac{\frac{1}{a}}{b}

30 0^{2} + 40 0^{2}

\frac{1}{2} \times (- \frac{1}{3})

\frac{1}{2} \times (- \frac{1}{4})

\frac{8 x ^{3} - 6 x ^{2} - 19 x + 15}{2 x - 3}