2 years ago

Answer the question below from I ready

Mathematics

2 answers:

Aleksandr [31]2 years ago

4 0

Answer:

a and b

Step-by-step explanation:

scZoUnD [109]2 years ago

4 0

Answer:

the second one

Step-by-step explanation:

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What if i=radical -1, what is the value of i^3

aleksklad [387]

$\bf i^3\implies \sqrt{-1}\cdot \sqrt{-1}\cdot \sqrt{-1}\implies (\sqrt{-1})^2\sqrt{-1}\implies \sqrt{(-1)^2}\cdot \sqrt{-1} \\\\\\ -1\cdot i\implies \boxed{-i}$

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2 years ago

Multiply: (4x – 7)(2x – 9)

Marizza181 [45]

Hello there!

Let's use foil.

First: 4x * 2x = 8x^2

Outside: 4x * -9 = -36x

Inside: -7 * 2x = -14x

Last: -7 * -9 = 63

Now, let's combine these.

8x^2 - 36x - 14x + 63

Finally, we can simplify this

8x - 50x + 63

I hope I helped!

Let me know if you need anything else!

~ Zoe

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2 years ago

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Step-by-step explanation:

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