4x² – 3x +7 find the zeroes
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Splitting the middle term.
4x² - (7- 4) x +7
4x² -7x +4x -7
x ( 4x -7 ) +1 ( 4x -7 )
(x+1) ( 4x -7)
x+1=0
x= -1
4x - 7 = 0
4x = 7
x = 7/4
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