siennalongo1 siennalongo1

23-03-2022
Mathematics

contestada

The area of a rectangular door is given by the trinomial x2 – 14x + 45. The door's width is
(x - 9). What is the door's length?

Respuesta :

soydawg56 soydawg56

23-03-2022

Length = (x - 5)

Explanation:
Area
=
Width × Length
⇒
x
2
−
14
x
+
45
=
(
x
−
9
)
× Length
⇒
Length =
x
2
−
14
x
+
45
(
x
−
9
)

⇒
Length =
(
x
−
5
)
(
x
−
9
)
(
x
−
9
)

⇒
Length =
(
x
−
5
)
(
x
−
9
)
(
x
−
9
)

⇒
Length =
(
x
−
5
)

Answer Link

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