Are 2y2 and -4y2 like or unlike terms?

Unlike terms.

Step-by-step explanation:

[2y2 does not equal -4y2], much like 5 does not equal 6, vice versa.

answer:   rlly

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.