Math Problem Statement

(2 − 4i)(−6 + 4i)

Solution

To simplify (24i)(6+4i)(2 - 4i)(-6 + 4i), we can apply the distributive property (also known as the FOIL method for binomials):

(24i)(6+4i)=2(6)+2(4i)4i(6)4i(4i)(2 - 4i)(-6 + 4i) = 2(-6) + 2(4i) - 4i(-6) - 4i(4i)

Now, let's simplify each term:

  1. 2(6)=122(-6) = -12
  2. 2(4i)=8i2(4i) = 8i
  3. 4i(6)=24i-4i(-6) = 24i
  4. 4i(4i)=16i2-4i(4i) = -16i^2

Recall that i2=1i^2 = -1, so:

16i2=16(1)=16-16i^2 = -16(-1) = 16

Now, let's combine all the terms:

12+8i+24i+16-12 + 8i + 24i + 16

Combine like terms:

(12+16)+(8i+24i)=4+32i(-12 + 16) + (8i + 24i) = 4 + 32i

Thus, the simplified result is:

4+32i4 + 32i

Would you like further explanation or details on any step? Here are some related questions you might find interesting:

  1. How do you multiply complex numbers using polar form?
  2. What is the significance of ii in complex numbers?
  3. Can we divide complex numbers in the same way as real numbers?
  4. How do we find the conjugate of a complex number and why is it useful?
  5. What is the geometric interpretation of multiplying complex numbers?

Tip: When working with complex numbers, always remember that i2=1i^2 = -1, which often simplifies your calculations!

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Math Problem Analysis

Mathematical Concepts

Complex Numbers
Multiplication of Complex Numbers
Algebra

Formulas

Distributive Property (FOIL method)
i^2 = -1

Theorems

Multiplication of Complex Numbers

Suitable Grade Level

Grades 9-11