3x²-11x-4 foctorise this , please helppppp it's urgent
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==> 3x² - 11x - 4
==> 3x² - 12x + x - 4
==> 3x( x - 4) + 1(x - 4)
==> (x - 4)(3x + 1)
Answered by
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By splitting the middle term
3x^2-12x+x-4
3x(x-4)+1(x-4)
(3x+1)(x-4)
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