Question

factorise 6 x square - 39 X - 21​

Answer 1

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Answer 2

Answer:

Pull out 3 from. the equation

Then becomes,

3(2x^2-13x-7)

Now factorise the polynomial in the bracket

2x^2-14x+1x-7

2x(x-7)+1(x-7)

3(2x+1)(x-7)