Factor completely 2x3y + 18xy - 10x2y - 90y. I need this done today in a few minutes.

2y (x^2+9) ( x-5)

Step-by-step explanation:

2x^3y + 18xy - 10x^2y - 90y

Factor out the common factor of 2y

2y(x^3+9x-5x^2-45)

Then factor by grouping

2y(x^3+9x     -5x^2-45)

Taking x from the first group and -5 from the second

2y( x (x^2+9)  -5(x^2+9))

Now factor out (x^2+9)

2y (x^2+9) ( x-5)

The cost of one pound of ground beef is $4.68

Step-by-step explanation:

Let

x ----> the cost of one pound of ground beef

we know that

The cost of 1.5 lbs of ground beef plus $14.53 must be equal to the cost of 3.75 lbs of ground beef plus $4.00 (because Jordan and Victoria spent the same amount)

so

The linear equation that represent this situation is

solve for x