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Vesna [10]
3 years ago
8

What is the sum of x^2 - 3x + 7 and 3x^2 + 5x - 9

Mathematics
1 answer:
Dmitrij [34]3 years ago
7 0

Hey there!

The answer to your question is 4x^2+2x-2

Given:

x^2-3x+7 and 3x^2 +5x-9

First, we can start by adding like terms. The following are like terms:

x^2 and 3x^2

-3x and 5x

7 and -9

Now, we can add these pairs together, giving us:

4x^2

2x

-2

Now, add all this together, and we get our answer as:

4x^2 + 2x - 2

Have a terrificly amazing day!

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Simplify the following v^4*v^5*v
Hunter-Best [27]

Answer:

v^10

Step-by-step explanation:

For this, we need to understand one important rule of exponents.  For powers of like bases, you add the exponents when they are being multiplied.  With this in mind let's continue.

In this problem, the base is v, each multiplied with different powers.  So:

v^4 * v^5 * v = v^(4+5+1) = v^10

So the solution will be v^10.

An additional example would be 2^2 * 2^3.

For this we know it would be 2^2 * 2^3 = 2^(2+3) = 2^5 = 32.

We can verify by simply doing 2 * 2 * 2 * 2 *  2 = 32.  Note both are 32, and this example shows the usefulness of exponent rules.

Hope this helps.  Cheers.

3 0
3 years ago
Read 2 more answers
If the nth term of a number sequence is n² – 3, find the first 3 terms and the 10th term​
nignag [31]

Answer:

-2, 1, 6 and 97

Step-by-step explanation:

Tn = n² - 3

First Term : T1 = (1)² - 3 = -2

Second Term : T2 = (2)² - 3 = 1

Third Term : T3 = (3)² - 3 = 6

Tenth Term : T10 = (10)² - 3 = 97

6 0
3 years ago
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Thepotemich [5.8K]

Answer is BF...hope this helps

6 0
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MAXImum [283]

Answer 1 -16 3y-2 >16 k-1 >24 -8.8x>24-8.8x<32

Step-by-step explanation:

k>3, x> - 10-11,y>2-3 (128k-127)

6 0
3 years ago
OK. these questions are worth ALL my points (55) !
Ratling [72]

Answer:

1. -7

2. 212

3. -49

4.-1,991

5. 78

6. -16

7. 2

8. 100

9. 16

10. 16

11. 13

12. 75

13. |12| = 12

14.|12| = 12

15. |8|

16.| 10|

17.15

18. 1,400

Step-by-step explanation:

6 0
3 years ago
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