# algebra

posted by .

Find the sum in simplest form.

7mn + 5m^2 + 3n^2 + 2mn

a) 15m^2n^2 + 9mn
b) 7mn + 5m^2 +3n^2 + 2mn
c) 15m^2n^2 + 9m^2n^2
d) 5m^2 +3n^2 + 9mn

• algebra -

i think i figure out this answer myself its d but i could be wrong

• algebra -

d is it
the 2 and the 7 mn s are all the like terms you can combine

• algebra -

(−5m + 7mn) − (2mn + 7m)

## Similar Questions

1. ### ALGEBRA

Rewrite this as an rational exponent: (√7mn)^7
2. ### math 208

21n^4 ______ 5x^3y^4 _______ 7mn^2 _______ 20x^2y
3. ### pleaese help math

12p^2q|7mn^3|3p^3q^3|21n^4
4. ### algebra

example of simplest form of 4-1m-2n3/(2mn)-3
5. ### MATH

the simplest form of 4RACE TO NEGATIVE1 MRACE TO NEGATIVE2 NRACE TO NEGATIVE3ALL OVER(2MN)RACETO NEGATIVE3
6. ### math

Having trouble with these pairs of numbers (20,21,29) - (28,45,53) I am supposed to develop a Pythagorean triple. Here is that I am supposed to use which is a formula that can be used to generate infinite number of generating Pythagorean …
7. ### chemistry

hello i'm doing a redox stoichiometry lab having to do with titration so we are given these two equations: 6 H + 3H2O2 + 2MnO4 ---> 4O2 + 2Mn + 6 H2O 6H + 5H2O2 + 2MnO4 --> 5O2 + 2Mn + 8 H2O it asks which reactant is the source …
8. ### Algebra I B

(2mn)^3(5m^-3)^2
9. ### Physics

An object is thrown vertically up with a speed of 15m/s. How much time passes before it comes down at 15m/s?
10. ### Pre-calculus

How do I factor this: 6m^2 + 7mn + n^2 I really don't understand this one

More Similar Questions