Factor completely: -9x4+1296
3x6-1029y9
5a5b10+60a3b5x2+180ax4
9x^2y^2-27x^2y-72y^2+216y

What are “like terms”? why can we only add like terms?

Write an equation in slope intercept form of the line passes through the given point and is parallel to the graph of the given equation (0,0); y=3/8 x+2

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?