Factorise: 3x² – x – 4
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Answer:
3x² - x - 4
3x²-4x + 3x -4
x(3x-4) + 1( 3x-4)
(3x -4) (x+1)
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Answer: 3x² – x – 4
3x²+3x-4x-4
3x(x+1)-4(x+1)
(3x-4)(x+1)
To find zeroes equate it to 0
(3x-4)(x+1)=0
⇒x=4/3 and x=-1
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