12-10-2014
Mathematics

contestada

how do i factor the quadratic expression 4x^2-11x=3

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rabinshrestha41 rabinshrestha41

12-10-2014

4x² - 11x = 3
4x² - 11x - 3 = 0
4x² -12x + x - 3 = 0
4x (x - 3) + 1(x - 3) = 0
(x - 3) (4x + 1) = 0
Using zero product property,
Either,
x - 3 = 0
x = 3
Or,
4x + 1 = 0
4x = -1
x = -1/4

Answer Link

MichaelLiu MichaelLiu

12-10-2014

[tex]4 x^{2} -11x-3=0[/tex]
(4x+1)(x-3)=0
We can solve for x by setting each parentheses equal to 0
x= -1/4
x= 3

Answer Link

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