Question

Factorise 3x²- x - 4 .​

Answer 1

Answer:

3x^2−x−4

=3x^2+3x−4x−4

=3x(x+1)−4(x+1)

=(3x−4)(x+1)

Hence, 3x^2−x−4=(3x−4)(x+1).

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