Question

Combine like terms.
(-3y^2-7y-9)-(4y^2+6y+9)

Answer 1

answer choices
A)y^2-y
B)-9y^2-11y-18
C)7y^2+13y+18
D)-7y^2-13y-18

Answer 2

^ means powered aka exponent

Answer 3

First start by distributing the negative through

(-3y^2-7y-9)-(4y^2+6y+9)


-3y^2-7y-9-4y^2-6y-9


Now group like terms


(-3y^2-4y^2) + (-7y-6y) + (-9-9)


From here, you combine like terms. I'll let you do this.

Answer 4

Remember, to combine like terms, you just add/subtract the coefficients that sit in front of the like terms.


Ex: 2x+3x is 5x because you add 2 and 3 to get 5