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Gennadij [26K]
3 years ago
10

5. Simplify (7x2+ 8) - (x2 - 2)

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

Answer:

(7 \times 2 + 8) - ( {x}^{2}  - 2) \\ (14 + 8) - ( {x}^{2}  - 2) \\ 14 + 8 -  {x}^{2}  + 2 \\ 22 +  {x}^{2}  + 2 \\ 24 +  {x}^{2}

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

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[4 - (3c - 1)][6 - ( 3c - 1)]
Anestetic [448]
Hi there!

You would have to simplify the terms inside [ ] this thing, then multiply.

So let's simplify them first.

4 - (3c - 1) 
use distributive property.....
4 - 3c + 1
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6 - (3c - 1)
use distributive property again...
6 - 3c + 1
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so now, multiply (-3c + 5)(-3c + 7).
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So your final answer is...
9c² - 36c + 35

Hope this helped! :)
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