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irinina [24]
3 years ago
5

Evaluate A^2-B^2 for A=3 and B=-4.

Mathematics
1 answer:
MAXImum [283]3 years ago
4 0

Answer:

7

Step-by-step explanation:

3^2 = 9

(-4)^2 = 16

16-9= 7

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Simplify (5x−2+3x^2)+(4x+3)
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Answer:

3x^2 + 9x + 1

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Step-by-step explanation:

(5x - 2 +3x^2 ) + (4x + 3 )

To make this a little bit more easier to read, you can remove the parentheses:

5x - 2 + 3x^2 + 4x + 3

Now, write in a way so that the like terms are next to each other:

3x^2 + 5x + 4x - 2 + 3

Now simplify the 'x' terms to get:

3x^2 + 9x - 2 + 3

Now, simplify the integers (the ones with now variables with them) to get:

3x^2 + 9x + 1

If you want, you can factor out the 3x for two of the terms to get :

3x ( x + 3 ) + 1

Therefore, your simplest form can either be 3x^2 + 9x + 1 OR 3x (x + 3 ) + 1

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Answer:

Hey there!

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Step-by-step explanation:

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