Tutorial - How do we multiply complex numbers ex 12, (-1 - 5i)(-1 + 5i)

Tutorial - How do we multiply complex numbers ex 12, (-1 - 5i)(-1 + 5i)

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains special factoring techniques, focusing on the difference of two squares. It begins by identifying the difference of squares and its formula, a^2 - b^2 = (a - b)(a + b). The instructor demonstrates how to apply this formula to complex numbers, specifically using the example of -1 and -5i. The process involves squaring the terms and simplifying the expression to reach the final result. The tutorial concludes with a summary of how to multiply complex numbers using the difference of squares method.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the final answer when multiplying the complex numbers in the example provided?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you calculate the result of multiplying complex numbers in the form of a^2 - b^2?

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