Factorise ----- 3x² - x - 4

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Solution

Solution:

or, 3x^2 - x - 4 = 0
or, 3x^2 - 4x + 3x - 4 = 0
or, x(3x - 4) + 1(3x - 4) = 0
or, (x+1)(3x-4) = 0

Either,
or, (x+1) = 0
or, x = -1 (Answer)

Or,
or, (3x-4) = 0
or, 3x = 4
or, x = 4/3 (Answer)

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