Question

Anyone knows how to do this

Answer 1

Length = x - 2
That’s the right answer

Answer 2

length = x - 2

Explanation:

The area (A) of a rectangle is calculated as

A = length × width

Here A = x² - 7x + 10 and width = x - 5

x² - 7x + 10 = length × (x - 5) ← divide both sides by (x - 5)

length =
`(x^2-7x+10)/(x-5)` ← factor the numerator

=
`((x-5)(x-2))/(x-5)` ← cancel common factor (x - 5) on numerator/ denominator

= x - 2

Thus length = x - 2 metres