Question

(-12,8+5,9)•(-2,3-2 7/10

Answer 1

Ответ:

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Answer 2

It seems like you're performing a multiplication operation between two complex numbers. Let's break down the calculation step by step:

First Complex Number: -12 + 8i Second Complex Number: -2.3 - 2.7i (Note: -2 7/10 = -2.7 as a decimal)

Now, let's perform the multiplication:

(-12 + 8i) * (-2.3 - 2.7i)

Using the distributive property of multiplication over addition, we can expand this expression:

-12 * -2.3 + (-12) * (-2.7i) + 8i * -2.3 + 8i * -2.7i

Simplify each term:

27.6 + 32.4i - 18.4i - 21.6i^2

Remember that i^2 is equal to -1:

27.6 + 32.4i - 18.4i - 21.6 * (-1)

Now, simplify further:

27.6 + 32.4i - 18.4i + 21.6

Combine real and imaginary parts:

49.2 + 13.6i

So, the result of the multiplication is 49.2 + 13.6i.