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20 March, 06:58

Factorise

a) x + 3x - 4

+4
Answers (2)
  1. 20 March, 07:02
    0
    (x-1) (x+4)

    Step-by-step explanation:

    I'm guessing you meant x^2+3x-4.

    The easiest part is knowing that:

    (x-_) (x+_)

    You have to look for numbers that multiply to - 4 and add up to 3. Therefore, it would be - 1 and 4:

    (x-1) (x+4)
  2. 20 March, 07:13
    0
    The answer to this equation is 4 (x-1)
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