Question

The area of a football field is x2 + x - 42. Find the length and width of the field in terms of x.

Answer 1

i think just solve for x an the larger value for x is the length and the smaller one is the width. you need to find two numbers that when mupltied together = -42 and when added together = 1. (factoring)

Answer 2

So It Would Be (x - 7) and (x + 6)

Answer 3

yeah but now that i look at that you can't have a negative length or width. ummm. forget what i said. give me a second

Answer 4

ok

Answer 5

okay um. A = L*W = x^2+x-42 so the only thing i can think of to write the length in terms of x and the width in terms of x is to go L=( x^2+x-42)/W then do the same for the width. I'm not sure if that's right but that's the best i got

Answer 6

ok thanks tho