Question

Simplify by cancelling common factors

21x - 3x² / 6x
= _ - _ / _

(_ equal blanks)

Answer 1

`(7-x)/(2)`

Explanation:

Given

`(21x-3x^2)/(6x)` ← take out 3x from each term on the numerator

=
`(3x(7-x))/(6x)` ← cancel 3x and 6x on the numerator/ denominator by 3x

=
`(1(7-x))/(2)`

=
`(7-x)/(2)`

Answer 2

7-x/2
because all can be divided by 3x