Question

6. The area of a rectangular field is given by the trinomial t2 – 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

t2 – 4t – 45 =(t+5)(t-9)

(t2 – 4t – 45)/(t+5) = t-9

Answer 3

A = lw
t^2 -4t - 45 = (t+5)(t-9) --> width is (t-9)

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