Posted by **Anonymous** on Friday, February 21, 2014 at 4:45pm.

Add (5x^2 - 2x + 9) + (2x^2 - 4).

My answer: 7x^4 - 2x + 5 or 7x^2 - 2x + 5?

- Algebra 1 -
**Reiny**, Friday, February 21, 2014 at 4:52pm
Your question was answered , go back and check

- Algebra 1 -
**PsyDAG**, Friday, February 21, 2014 at 4:53pm
The latter. Exponents are added when multiplying terms.

- Algebra 1 -
**Anonymous**, Friday, February 21, 2014 at 4:54pm
I am confused. Steve said the correct answer is 7x^4 - 2x + 5.

- Algebra 1 -
**Reiny**, Friday, February 21, 2014 at 5:13pm
5x^2 + 2x^2 = 7x^2

(5 apples + 2 apples = 7 apples)

Steve had a typo, happens even to the best of us

## Answer this Question

## Related Questions

- 8th Grade Algebra: Answer Check #2 - Add or Subtract (Radicals) { this means ...
- Algebra - Add and simplify: 2/x^2-16 + 3/x^2 -2x-8 Now if the numerator of your ...
- math - 1 2/3 add 2 8/9 then divide the answer by 3. 1 2/3 add 2 8/9= 7/3 add 26/...
- Algebra - Jill asks each of her classmates to choose a number, then multiply the...
- Algebra 1--Please, check my answer! - Add or subtract. Simplify your answer. 1...
- algerbra 1 - what is the answer to 5x-16=14-5x Just giving you the answer is not...
- algebra - If I add x^5+5x^4 is the answer 6x^9?
- Algebra 1 - 17) Simplify [32/-8]/-1/2 Answer: -8 18) Add -7+(-9) Answer: -16 19)...
- Algebra - Divide: (-8y^7x+15y^7x^6)/(-2y^2x^5) I got y^5(-8+15x^5)/-2x^4 It won'...
- math - i need some to explain how to turn 1.05 into a fraction Do you know how ...