Question

Combine like terms to simplify the expression:



7x + 3y – 2 + 6x + 1 + y2


2y3 + 13x – 1


y2 + 3y + 13x2 + 1

3y3 + 13x2 + 1

y2 + 3y + 13x – 1

Answer 1

Like terms are terms with the same variable.

i.e. if we have 2b + 3x + 5b we can combine 2b and +5b to get 7b

Answer 2

ok

Answer 3

im still lost

Answer 4

7x + 3y – 2 + 6x + 1 + y^2

which terms have the variable "x"?

Answer 5

7x 6x

Answer 6

Good, now combine them

Answer 7

76

Answer 8

or 13?

Answer 9

Yeah. We're adding when combining terms, so 13x

Answer 10

ok

Answer 11

13x + 3y – 2 + 1 + y2

Now which terms have no variable?

Answer 12

3y 2y

Answer 13

?

Answer 14

not sure

Answer 15

I'm assuming it's y^2 so no

3y is not the same as y^2, since y has an exponent of 2

Answer 16

Which terms don't have a variable?

Answer 17

not sure i know what a variable is to be honest i forgot