Which rational expression is undefined when x = 0? O
5x2 - 4
3X-3
6x²
9x - 3
8x + 6
- X2+1
4X-8
- 2x

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

What is always true when two whole numbers are subtracted?

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.