Question

Simplify: 7x^2+2x^2.. I tried... :(

Answer 1

first ask yourself: are 7x^2 and 2x^2 like terms or common terms? yes? or no?

Answer 2

yes

Answer 3

they are like terms

Answer 4

so because they are like terms, you just add the coefficients (ie the numbers out front)

Answer 5

ok so what did u get? my calculator said syntax order