Question

Simplify the expression below.
6n2 - 5n2 + 7n2

Answer 1

first step find GCF(greatest common factor)

Answer 2

Are those squared?

Answer 3

yeah

Answer 4

combine like terms

Answer 5

hint:
\[\large 6{n^2} - 5{n^2} + 7{n^2} = {n^2}\left( {6 - 5 + 7} \right) = ...?\]

Answer 6

8n^2

Answer 7

that's right!

Answer 8

thanks

Answer 9

all variables are same and same exponent so you can combine them \[\huge\rm 6\color{green}{n^2} -5\color{green}{n^2} + 7\color{green}{n^2}\]

Answer 10

thanks