idonthaveaname18 idonthaveaname18
  • 03-09-2019
  • Mathematics
contestada

Factorise the following by taking out a common binomial factor.
7(x - 3) - (x + 3)(x - 3)

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kosala1478
kosala1478 kosala1478
  • 03-09-2019

Step-by-step explanation:

7(x - 3) - (x + 3)(x - 3)

(x - 3)(7 - (x + 3))

(x - 3)(7 - x - 3)

(x - 3)(4 - x)

Answer Link
Аноним Аноним
  • 03-09-2019

Answer:

(x - 3)(4 - x).

Step-by-step explanation:

The common binomial factor is (x - 3) so we have:

7(x - 3) - (x + 3)(x - 3)

= (x - 3)( 7 - (x + 3))

= (x - 3)(4 - x)

Answer Link

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