Posted by **Cindy** on Tuesday, March 24, 2009 at 4:06pm.

Find each sum or difference

(3x^2 + 7x- 2)+ (2x^2 - 3x + 4)

Answer: 5x^2 + 4x + 2

(4x + 8y) + (-7y + 3x)

Answer: 7x+1y

(x^2 + 4x - 1)+ (9x^2 - 8x + 9)

Answer: 10x^2 - 4x + 8

(8x + 6) - (2x - 1)

Answer: 6x+ 11

- Math/Algebra -
**bobpursley**, Tuesday, March 24, 2009 at 4:25pm
all are correct, except the last one. How did you get 6+1 to equal 11?

- Math/Algebra -
**Cindy**, Tuesday, March 24, 2009 at 4:36pm
I'm sorry my answer is 6x + 7 is this right???

- Bobpurseley please read the post above. -
**Cindy**, Tuesday, March 24, 2009 at 4:40pm
please read my correct answer

- Math/Algebra -
**bobpursley**, Tuesday, March 24, 2009 at 5:29pm
correct.

## Answer This Question

## Related Questions

- Algebra - Please confirm if I did the follow problems correctly: A) Find the sum...
- Algrebra - Please confirm if I did the follow problems correctly: A) Find the ...
- Math - Find the difference: 3-(-9) A. -12 B. -6 C. 6 D. 12 I got the answer on (...
- 8th grade Algebra - Find sum or difference of: 49z^4 - 25y^4 Is the correct ...
- algebra(check) - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a...
- algebra - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b....
- algebra - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b....
- algebra - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b....
- Algebra - What is the sum or difference? 5-3x/5 My answer is 1 - 3x/5
- 8th Grade Algebra: Answer Check - Find the length of the 3rd side of each right ...

More Related Questions