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Aleks [24]
3 years ago
8

Which is equivalent to (2-5i)(-2+5i)

Mathematics
2 answers:
lisov135 [29]3 years ago
8 0
(2-5i)(-2+5i)=\\
-(2-5i)^2=\\
-(4-20i-25)=\\
-(-21-20i)=\\
21+20i
Nadusha1986 [10]3 years ago
6 0
= -4 + 10i + 10i -25i^2 = -4 + 20i + 25 = 21 + 20i, because i^2 = -1.
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Inessa [10]

Answer:

y = 3

Step-by-step explanation:

Let's start with the left side of the equation.

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Now let's solve the right side

5y-10-2= 2y+2-5

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-2y     -2y

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hope this helps!

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3 years ago
Please refer to the attachment for clear.. Need help please.
umka21 [38]

Hello There!

The answer you have selected, (D) is correct!

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13/10 is also called an irrational fraction, the more you know~

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