Question

Factorise the following

1.1. 6a-21


1.2.

`6 {x}^(2) + 9x`
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Answer 1

11. 6x^2-9x
12. 3x(2x+3)
Hope it helps

Answer 2

1.1. 3(2a-7)

1.2. 3x(2x+3)

Explanation:

Put the common factor on the outside of the parentheses.

1.1. 6a-21

The lowest common factor for 6a and -21 is 3.

3(2a-7)

1.2.
`6x^(2) +9x`

The lowest common factor for
`6x^(2)` and 9x is 3x.

3x(2x+3)