Factorise fully .

Answer and explanation

Correct answer: C.

  1. Step 1: The highest common factor of and is .
  2. Step 2: Take it outside the bracket: .
  3. Step 3: Check: and .
Answer
.
Why not the others: : This is correct but not fully factorised: still has a common factor of . : This is also not fully factorised, because still has a common factor of . : The has not been divided by .

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