What is 15i\times 4i ?

The solution to 15i\times 4i is -60

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simplify 15i\times 4i

simplify

15 i \cdot 4 i

- 60

Solution steps

15 i 4 i

Multiply the numbers:

15 \cdot 4 = 60

= 60 ii

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 60 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 60 (- 1)

Multiply the numbers:

60 (- 1) = - 60

= - 60

7 \div \frac{3}{8}

5 (- \frac{1}{3})^{3}

\frac{144}{24}

\frac{144}{36}

3 x + 3 x + 3 x