What is 3x3 – 8x2 – 5x + 6 subtracted from x3 + 3x2 + 5x + 6?

-2x3 -5x2 assuming that this is written in exponential form

-2x^3 -5x^2

Step-by-step explanation:

  (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

And replacing we got:

And the width for this case would be 15.8 in

Step-by-step explanation:

For this case we know that the photo is rectangular. Let's define:

x = the width,  y= the length

And we know that the perimeter is given by:

  (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

And replacing we got:

And the width for this case would be 15.8 in