Factorise completely: 6x^2 - 9x.
Answer and explanation
Correct answer: D. 3x(2x - 3)
- Step 1: The highest common factor of 6x^2 and 9x is 3x. Step 2. 6x^2 - 9x = 3x(2x - 3). Answer: 3x(2x - 3). Why not the others: 3(2x^2 - 3x): The common factor x has not been taken out, so it is not fully factorised. x(6x - 9): The common factor 3 has not been taken out. 3x(2x + 3): The sign inside the bracket should be negative.
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