Question

The area of a rectangular field is given by the trinomial t^2 – 4t – 45. The length of the rectangle is t + 5. What is the expression for the width of the field?

Answer 1

t-9

Answer 2

t^2 – 4t – 45= (t + 5)(t-9)
so length is = t-9

Answer 3

(t+5)(t-9) = t^2-4t-45

l