Question

Marcus finds that (3x^2-2y^2+5x)+(4x^2+12y^2-7x)= 7x^2-10y^2-2x What error did Marcus make?
A: He combined the terms 5x and –7x incorrectly.
B: He combined the terms 3x^2 and 4x^2 incorrectly.
C: He combined the terms –2y^2 and 12y^2 incorrectly.
D: He subtracted the polynomials instead of adding.

Answer 1

your opinion ?

Answer 2

courage this is easy

Answer 3

-2y^2 +12y^2 = ?

Answer 4

remember you can only add LIKE terms

Answer 5

OH theres an error in the question. The 12y should be 12y^2.

Answer 6

yes welsh exactly

Answer 7

if you answer jothnny9's question you'll get the answer.

Answer 8

ty. welsh. - good luck

Answer 9

ty Sad to think that OS is going soon.