Simplify: 5x – 12y + 8x + 2x2 + 4x2 13x2 – 12y + 6x4 13x – 12y + 6x2 -3x – 12y + 6x2 7x2y

Terms that have the same variables and the same exponents can be combined together.

5x - 12y + 8x + 2x^2 + 4x^2 =

= 5x + 8x - 12y + 2x^2 + 4x^2

= 13x - 12y + 6x^2

Second choice, 13x - 12y + 6x^2

5x - 12y + 8x + 2x² + 4x²

Combine like terms

You can keep the variables/exponents the same if you are adding or subtracting the same like terms (same variable to the same power)

5x - 12y + 8x + 2x² + 4x²

We can combine 5x + 8x and 2x² + 4x² because they are like terms; -12y will be left alone

13x - 12y + 6x² is your answer

the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.