If x = a + bi and y = –a – bi, x + y = 0

1 answer:

7 0

That would be the inverse property of addition. When you add the opposite of a number to that number, your sum will be zero. -a is the opposite of a and -bi is the opposite of bi. When you add x + y (aka the opposites) your total is absolutely nothing!

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Answer:

The expression for two times the difference of 4 and a number is

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Step-by-step explanation:

To Find:

Write an expression for Eight times the difference of 4 and a number.

Solution:

Let the Unknown number be 'd'

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So One Time Difference of 4 and d = 1× ( 4 - d )

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The expression for Eight times the difference of 4 and d. will be

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