Asked by raluca

simplify:

7y-3y-x^2+4x^2

how do i add x^2 to 4x^2?
what will the result be?

i know that 2x^2-x^2 = x^2....but not how to do the above

13 years ago

Answered by Damon

4 x^2 - 1 x^2 = 3 x^2

7 y - 3 y = 4 y

so
3 x^2 + 4 y

13 years ago

Answered by raluca

omg! thank you! i get it now! :D

13 years ago

Answered by Damon

Good ! You are welcome.

13 years ago

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