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hram777 [196]
3 years ago
5

What is the value of the 4 in 542

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
8 0
It is in the tens place so it would be 40
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Multiply: (4x – 7)(2x – 9)
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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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