The following steps are used to rewrite the polynomial expression (x + 4y + 2)(x - 7y).
step 1: x(x – 7y) + 4y(x - 7y) + z(x - 7y)
step 2: x2 - 7xy + 4yx - 28y2 + zx - 7zy
step 3: x2 - 7xy + 4xy - 28y2 + xz – 7yz
step 4: x2 – 3xy - 28y2 + xz - 7yz
identify the property used in each of the steps:
step 1:

Do 12/14 and 8/10 have the same value? explain your answer.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

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.