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Dima020 [189]
4 years ago
13

Find (2x^2 + 2) + (x^2-4) – (3x^2 + 1)​

Mathematics
2 answers:
Butoxors [25]4 years ago
6 0

Answer:

- 3

Step-by-step explanation:

2 {x}^{2}  + 2 + ( {x}^{2}  - 4) - (3 {x}^{2}  + 1) \\ 2 {x}^{2}  + 2 +  {x}^{2}  - 4 - 3 {x}^{2}  - 1 \\ 2 {x}^{2}  +  {x}^{2}  - 3 {x}^{2}  + 2 - 4 - 1 \\   = - 3

lidiya [134]4 years ago
5 0

Step-by-step explanation:

hope this is right I got this answer on one my fav website tiger

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sladkih [1.3K]

y = −2x + 13


y = 2x − 3


Set the equations to equal and solve for x:

-2x + 13 = 2x -3

Add 2X to each side:

13 = 4x -3

Add 3 to each side:

16 = 4x

Divide both sides by 4:

x = 16/4

x = 4


Now replace x with 4 in one of the equations and solve for y:


y = -2(4) +13

y = -8 +13

y = 5


x = 4 and y = 5 , which is the ordered pair (4,5)

Both numbers are positive values, so the second graph is correct.

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What’s the answer and the work ?
Phoenix [80]

Answer:

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Step-by-step explanation:

√56

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