Question

#1 Combine like terms (AlgebraTiles) 3y2+3y2 #2 -3x2-3x2 #3 X2-3x2

Answer 1

Not sure if I'm reading this correctly your post

#1 combine like terms

3y^2+3y^2 = 6y^2

#2

-3x^2-3x^2=-6y^2

#3

X^2-3x^2=-2x^2