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Amanda [17]
3 years ago
9

Multiply: (4x – 7)(2x – 9)

Mathematics
1 answer:
Marizza181 [45]3 years ago
7 0
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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34kurt

Answer:

1. 18 (sqrt21 - sqrt2a)

2. 3

3. x^m/n

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5. x = -2 or -6

6. x = 30

Step-by-step explanation:

Number 1

3^3sqrt21 - 6^3sqrt2a

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18 (sqrt21 - sqrt2a)

Number 2

3^1/2 * 3^1/2 =

3^1/2+1/2 =

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3

Number 3

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Number 4

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(√2x + 13)^2 = (x + 5)^2

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subtract 2x from both sides

0 = x^2 +8x + 12

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Number 6

3 ^5sqrt(x+2)^3 + 3 = 27

subtract 3 from both sides

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divide through by 3

^5sqrt(x+2)^3  = 8

square both sides by 5 to take away the 5th root sign

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3 0
4 years ago
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Answer:

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Step-by-step explanation:

<em>                                                   not available</em>

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