Shandra has a sheet of cardboard whose area is x2 + 2x − 15 square inches. we know that the length of the cardboard sheet is (x + 5) inches. what is its width? (hint: area = length · width)

The width will be

Step-by-step explanation:

Area of the sheet of cardboard

Length of the sheet

We know,  

So,  

Thus....

So, the width will be

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a