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