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Tcecarenko [31]
2 years ago
7

Solve 7z^2 + 4z - 1) + (2z^2 - 6z + 2)

Mathematics
1 answer:
Vlad1618 [11]2 years ago
5 0

Answer:

9z^2+4x+1

Step-by-step explanation:

Remove parentheses.

7{x}^{2}+4x-1+2{x}^{2}+2

7x  

2

+4x−1+2x  

2

+2

2 Collect like terms.

(7{x}^{2}+2{x}^{2})+4x+(-1+2)

(7x  

2

+2x  

2

)+4x+(−1+2)

3 Simplify.

9{x}^{2}+4x+1

9x  

2

+4x+1

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6 0
2 years ago
Answers: a/b= 8/2 B: 3.2/2= a/b C: b/6.4 = 8/5 D: 2/ 3.2= b/a​
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Answer:

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Step-by-step explanation:

6 0
3 years ago
-9x-12=35-x
masya89 [10]
= -<span>9x-12=35-x

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